Daily Archives: March 31, 2020

Unlike Earth, Mars may have never had a global magma ocean – Astronomy Magazine

Posted: March 31, 2020 at 6:54 am

At least once in its past, Earth existed as a roiling ball of molten rock that might have had the consistency of room-temperature oil, but would been untouchable at some 2,000 degrees Fahrenheit (1,090 degrees Celsius).

As magma oceans ebbed and flowed, the tumult might have launched elements conducive for life out of the rock and into our atmosphere. Researchers previously thought that maybe similar fluid dynamics and the resulting spewing of life-supporting materials likewise happened on Mars. But new research suggests that's not the case.

Weve had so little time to think about how a planet would evolve without a melting step, its hard to tell if this is a net positive or net negative for [the possibility of] life, says Francis McCubbin, a NASA national materials coordinator and researcher who co-authored the new research.

By studying meteorites that came from Mars, McCubbin and his colleagues determined that the planet hosts two regions where the rock contains different ratios of hydrogen varieties. If the planet had once been awash in liquid rock, the same ratio of hydrogen types would be found all over the place, the team concluded in their Nature Geoscience paper.

Hydrogen analysis is one way to figure out whether Mars ever had a global magma ocean, McCubbin says. Other, yet-unstudied chemical systems on the planet could reveal ocean formation. Thatspart of why McCubbin says its too early to consider this finding a thumbs-down for the possibility of life on Mars and why their team plans to keep looking for signs of a once-liquid planet.

Before our solar system had planets, it had dust and gas. When those particles started clumping together, researchers think the clumps collided again and again until entire planets formed. Eventually, the clusters melted into an ocean of magma. Like a blender mixing strawberries and bananas into a smoothie, liquifying would swirl all the deposits from the early solar system together. The process would also churn material from inside the planet core and release it into the atmosphere, McCubbin says, including elements and chemicals necessary for life.

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Unlike Earth, Mars may have never had a global magma ocean - Astronomy Magazine

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Necroplanetology: The Strangest Field of Astronomy You’ve Never Heard Of – ScienceAlert

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In 2015, astronomers found something weird. It was a white dwarf star, 570 light-years from Earth, with a peculiar dimming pattern. It dimmed several times to varying depths, each depth repeating on a 4.5 to 5-hour timeframe; and its atmosphere was polluted with elements usually found in rocky exoplanets.

It didn't take long before they figured it out. The gravity of the dead star was in the process of shredding and devouring bodies in orbit around it, a violent process known rather politely as tidal disruption.

The star is called WD 1145+017, and it's now being used as a proof of concept for a new field of planet study, forensic reconstruction of planetary bodies to understand what they were like, and how they died.

Astronomers from the US and the UK are calling this field necroplanetology.

Their analysis of WD 1145+017 has been accepted into The Astrophysical Journal, and is available on arXiv. And it could, the researchers say, be applied to future discoveries similar to the white dwarf system to piece together how planets die orbiting different kinds of dead stars.

Although white dwarfs eject a lot of material when they die in a series of violent thermonuclear explosions, planets can somehow survive the process. Not only have we found planets in orbit around white dwarf stars, we have found elements in the atmospheres of white dwarf stars that are usually found inside rocky exoplanets.

The surface gravity of white dwarfs is so intense that these heavier elements would sink quite quickly, indicating that the star must have accreted the material quite recently, from a body that survived the star's death throes.

To try and determine how WD 1145+017 got the way it did, astronomers from the University of Colorado, Boulder, Wesleyan University, and the University of Warwick in the UK conducted a series of simulations to place constraints on the tidally disrupted body.

They tweaked structural components of an orbiting body, such as the size of the core and mantle; the composition of the mantle, rocky or icy; and the presence of a crust. This resulted in 36 different simulated bodies.

Then, they set each of these 36 bodies orbiting a star like WD 1145+017, around 60 percent of the mass of the Sun, and 2 percent of its size (white dwarfs are pretty dense).

This orbit was 4.5 hours, as per the material orbiting WD 1145+017, and each simulation ran for 100 orbits. And finally, the resulting light curves for the tidal disruption of each body were then compared with the real-life light curve of WD 1145+017.

These simulations showed that the bodies most likely to produce what we observe in WD 1145+017 have a small core, and a low-density mantle, "resembling an asteroid with a partially differentiated structure and volatile-rich mantle like Vesta," the researchers wrote in their paper.

The bodies are relatively low mass, and have bulk density high enough to maintain structure for a while, but low enough that their mantles are disrupted. These attributes are consistent with the lack of small particles found in other observations of the star, since these would sublimate quickly.

And, in fact, they offer some clues as to other mysterious stars as well - such as the famous KIC 8462852, AKA Tabby's star, whose inconsistent dimming is a source of much puzzlement among astronomers.

KIC 8462852, since its strange behaviour was first discovered, has turned out not to be the only star exhibiting such strange dimming. A survey last year turned up another 21 strangely dimming stars that could have similar dynamics.

And other white dwarfs slurping down orbiting bodies have been discovered, too. ZTF J0139+5245 and WD J0914+1914 were both discovered tidally disrupting planets last year.

These stars could be simulated using the team's new methods, too.

"These are the first members of a larger class of dying planetary systems that must be studied by pairing spectroscopic and photometric observations with disruption simulations, either tidal as in WD 1145+017 or rotational as Veras et al. (2020) proposes for the body transiting ZTF J0139+5245," the researchers wrote in their paper.

"This multi-pronged approach would use the death of these planetary systems in action to study fundamental properties of exoplanetary bodies that are otherwise inaccessible: a study in necroplanetology."

The research has been accepted into The Astrophysical Journal, and is available on arXiv.

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How to explore the universe while you’re stuck at home – Astronomy Magazine

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3. The Hubble Space Telescopes homepage

The most famous space telescope in history a joint mission undertaken by NASA and the ESA has its own website with loads of information on exoplanets, nebulae, stars, galaxies, and much more. You can sift through collections of thousands of photos, countless videos, and informative articles.

Hubblesite.org offers a lot of knowledge in one place. Whether youre looking for quick facts on the telescope, its mission, or its science, or just the latest Hubble news, the telescope's online portal has you covered. The site also has educational resources to help making teaching the next generation about Hubbles mission and astronomy as a science both easy and fun!

4. Cosmos: Possible Worlds

In 1980, Carl Sagan mesmerized the world when he hosted a humbling, captivating, and, most of all, accessible television series called Cosmos: A Personal Voyage. This show written by Sagan, Steven Soter, and Emmy and Peabody Award-winner Ann Druyan (who married Sagan in 1981) thoughtfully explored the wonders of the universe, as well as our place in it. (By the way, if you havent heard Sagans famous Pale Blue Dot monologue, do yourself a favor and take a few minutes to listen to it.)

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Discover the secrets of the Northern Pinwheel Galaxy – Astronomy Magazine

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The western spiral armIf you have at least a 12-inch scope, trace the western arm outward from where it abruptly turns south; about 3.3' southwest of the galaxys nucleus, youll find a small bright area hugging the edge of the narrow dark lane. This is NGC 5453. Continue to follow the western arm south and youll find a triangle of stars framing the area where it fans out and vanishes. Again, Ive seen more than one sketch depicting all three points of this triangle as foreground stars, but the southernmost point is not a star careful examination shows it has soft edges. This is the nebula NGC 5455. This HII region is where the type II supernova 1970G appeared in July 1970, reaching magnitude 11.5. The remnant of this supernova has since been observed by Chandra as a bright, compact X-ray source. Brighter than NGC 5453, NGC 5455 can be seen with an 8-inch scope.

Type II supernovae explosions of single, massive stars are strongly associated with HII regions of galaxies, where such stars are born. By contrast, type Ia supernovae, which occur when a white dwarf in a binary system gravitationally siphons enough gas off its companion to explode, are not necessarily associated with HII regions. On August 24, 2011, the type Ia supernova 2011fe (originally designated PTF11kly because it was detected by the Palomar Transient Factory) appeared within this spiral arm of M101 and was visible in amateur scopes. You can see SN2011fe as a bright blue star within the western spiral arm in the image of M101 I took after it was discovered (page 53). But in a matching close-up from the images taken last year for this article, SN2011fe had vanished into obscurity.

This type Ia supernova appeared in a faint portion of this spiral arm, rather than within one of M101s numerous HII regions. Type Ia supernovae explode when a white dwarf reaches 1.4 solar masses, and thus are equal in brightness. Therefore, they serve as standard candles for calculating cosmic distances; SN2011fe helped refine our estimate of the distance to M101.

A few more treasures hide in the far western arm. Trace the arm outward from the core until you reach the bright, southward-pointing spearhead shape at the tip. A magnitude 14 foreground star marks its northwest edge. This bright shape is produced by the combined light of two adjacent nebulae: NGC 5450 in the southern half and NGC 5447 in the northern. Larger apertures may allow you to see the narrow dark gap between them.

If you have a large scope, you can try to spot M101s two most difficult targets. Check the far western arm at a point just south of a line between the southern star in the right triangle and the galaxys nucleus. If you see a subtle brightening there, youve found NGC 5449. Next, check the point two-thirds of the way along a line between the southern star in the right triangle and the turning-point star where the western arm abruptly turns south. A tiny bright spot there might be NGC 5451. However, be advised that a faint close double star in the Milky Way may fool you into thinking youve seen NGC 5451 when you havent.

I hope you will enjoy the thrill of hunting for these challenging NGC objects within M101. Your patience will be rewarded with the still-greater thrill of finding nebulae within a distant galaxy. Then, the next time someone mentions The Pinwheel Galaxy, you can both impress and surprise them by saying Oh, yes, the Pinwheel, in Ursa Major!

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The Sun: Extremely loud and incredibly hot – Astronomy Magazine

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You know, for how often we see the Sun, theres an awful lot we dont know about it.

I mean, we know its powered by nuclear fusion, that its 92.96 million miles away, and that its about a million times bigger than the Earth by volume.But theres more to it than that. Like, why is its corona so hot? How does the Sun make solar wind? How does it give Superman his powers?

Luckily, NASA is hard at work answering some of these questions.

In August 2018, NASA launched a mission to touch the Sun. Its called the Parker Solar Probe, and its designed to withstand super-high temperatures. Over the next few years, itll swoop around the Sun several more times, getting closer than any spacecraft before it.

And it will actually fly through the Suns corona, which is the wispy outer layer thats visible during a solar eclipse. Thats nuts because the corona is incredibly hot millions of degrees Fahrenheit. Turns out the surface of the Sun is only a few thousand degrees.

The probe will also take measurements of the hot, electrically charged plasma that comes off of the Suns corona and streams through space, called solar wind. These winds are what cause auroras on Earth and on other planets, too.

One of the biggest things researchers hope to learn is how the Sun transports energy into the corona in the first place. How is it so hot? And how does it push the solar wind out at such high speeds? Scientists have suspected that magnetic fields have something to do with it, but they dont know exactly what.

The probe has already made a few laps around the Sun and reported back. So far, Parkers found out that there are dramatic changes in the vibrations of the magnetic fields coming from the Sun, which seem to get weaker as they get farther away. Though the findings arent yet conclusive, its possible that these magnetic interactions are whats heating the Suns corona and accelerating the solar wind.

The other super rad thing weve gotten from the Parker Solar Probe are some sound clips. Lets listen.

What were hearing is the solar wind. Thats the whooshing and whistling noises.

Now, this isnt literally sound, like we think of it on Earth. Theres no microphone on board the solar probe. Instead, its measuring the frequencies and amplitudes of the pressure waves in the solar wind.

And that is kind of like sound because here on Earth, we hear pressure waves as sound. So all the researchers had to do was translate the waves that the probe measured into the types of waves we can hear.

I dont know, Im counting it.

So different sounds are produced by different types of particles doing different things, like, if a beam of electrons streams along a magnetic field.

Or, if electrons spin around a magnetic field.

So, anyway, the researchers werent just looking for some sweet new space sound effects. Theyre going to look into these data some more and see if they can learn about how the hot corona and the solar wind work.

Scientists are stoked about these initial results. Theyre really hopeful that more data from the Parker Solar Probe will spill some of the Suns remaining secrets.

By the way the Sun does make actual sound. We just cant hear it because space is a vacuum, so the sound waves dont have a way of getting to us. But if we could hear the constant roar, itd be pretty loud, even from here. One heliophysicist crunched the numbers and estimates the noise would be around 110 decibels, or about the same volume as speakers at a rock concert.

Im suddenly really glad space is a vacuum.

Anyway, the Parker probe isnt the only way were getting new info about the Sun.

Just a few days ago, the European Space Agency and NASA successfully launched a joint Solar Orbiter a new mission on its way to go check out the Sun.

And lets not forget the good ol fashioned telescope.

In fact, the new Daniel K. Inouye Solar Telescope in Hawaii the biggest solar telescope on Earth has taken its first video footage of the Sun. These new shots are the highest-resolution views of our star yet, showing details on the Suns surface as small as 18 miles across.

On the Sun, hot plasma rises to the surface, cools and sinks back down in a process called convection, like water boiling in a pot. The grainy pattern you see are these cells of plasma, which turn over about every five minutes.

The brightest spots are the hottest, where new plasma has just risen up from below. And the darker spots are where cooler plasma is sinking down. These plasma cells are roughly the size of Texas.

The bubbling motions are important for researchers to study because plasma is electrically charged, so its motions can create magnetic fields. And its the Suns magnetic fields that are responsible for some of its most dynamic behavior, like solar storms, which can mess with satellites and power grids on Earth.

The new telescope can also do more than take pretty pictures. Its got all sorts of instruments that can measure information about the magnetic forces in the Suns atmosphere.

With all this new information, scientists are closer than ever to figuring out how, exactly, our Sun keeps on shining.

Anna Funkis associate editor for Astronomy's sister magazine, Discover. Follow her on Twitter @DrAnnaFunk and check out ourYouTube channel for more videos.

This video is based on reporting by Erika K. Carlson and Nathaniel Scharping.

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Hubble anniversary events impacted by COVID-19 pandemic – Astronomy Now Online

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The Hubble Space Telescope as it was last seen in 2009 during a fifth and final space shuttle servicing mission. The iconic observatory will mark its 30th year in space on 24 April. Image: NASA

As reports continue about the spread of COVID-19 (coronavirus), this Announcement details the updates for the planned Hubble 30th Anniversary Image Unveiling events.

The health and safety of visitors and organisers of Hubble 30 celebrations events remain our top priority. The original plan was to have unveiling events taking place on or shortly after the anniversary date of 24 April. ESA/Hubble is now shifting its vision to instead hold events in the coming months that are a general celebration of the Hubble Space Telescopes splendid 30 years.

We understand the spread of the coronavirus may impact the feasibility of hosting public events, particularly those with large audiences. We are therefore flexible with regard to the new dates for the Hubble Space Telescopes 30th anniversary image to be featured at various European facilities. The showcasing of the image may form part of a general Hubble celebration event any time after the 24 April public image release, and before 30 September 2020.

Instead of only display events, ESA/Hubble is encouraging a broad style of events and activities that celebrate Hubble in general, and its 30 years of scientific discoveries. As events become more widespread throughout the year, ESA/Hubble will also support activities in whatever way possible, including the provision of additional materials and possible on-site support, such as qualified representatives from ESA/Hubble who can speak at various events.

Public health should remain paramount in this situation and ESA/Hubble is confident that the presence of the Hubble 30th anniversary image at various European locations will continue to be a source of amazement to public guests. Updates will be provided at a later date regarding the new event dates and plans, and general Hubble 30 updates will be posted on this page.

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Coronavirus, Intelligent Design, and Evolution – Discovery Institute

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Many people have been wondering about the relevance of intelligent design (ID) or evolution to the new coronavirus reported in Wuhan, China, in December 2019. What follows is my view as a molecular biologist.

The new virus goes by several names. It was initially called 2019-nCoV by the World Health Organization (with n standing for new). Since its DNA sequence is similar to that of the coronavirus that caused Severe Acute Respiratory Syndrome (SARS) in 2003, the International Committee on Taxonomy of Viruses renamed it SARS-CoV-2 in March 2020. The disease caused by the virus has been called COVID-19 (with d standing for disease).

There are other coronaviruses (including MERS-CoV, the virus that caused the 2012 epidemic of Middle East Respiratory Syndrome). To avoid confusion, I will refer to the latest coronavirus by its technical name, SARS-CoV-2.

Some people have maintained that SARS-CoV-2 is a product of human design. According to a February New York Post article, it may have escaped from a microbiology laboratory at the Wuhan Institute of Virology. But I have seen no scientific evidence to support this claim.

On March 17, 2020, an analysis of DNA from several different coronaviruses was published in Nature Medicine. The authors concluded, Our analyses clearly show that SARS-CoV-2 is not a laboratory construct or a purposefully manipulated virus.

Jonathan Bartlett, who has studied the logic of design inferences in depth, subsequently argued that the scientists had ruled out only one design hypothesis, so design was still theoretically possible. But Bartlett did not maintain that SARS-CoV-2 is a product of human design.

Could SARS-CoV-2 have evolved from another coronavirus by mutation and natural selection? I dont see why not, though there is only indirect evidence (from DNA sequences) to support the idea. If it had happened, however, it would not provide support for Darwinian evolution.

First, viruses are not living organisms: They are just pieces of DNA or RNA enclosed in a protein coat. They do not carry out metabolism (the chemical processes that are essential for life), and they do not reproduce themselves (only living cells or skilled genetic engineers can make copies of them). Second, even if viruses were considered living things, the evolution of SARS-CoV-2 from another coronavirus would be akin to microevolution minor changes within existing biological species. (Species are not even defined the same way in viruses as they are in living organisms.)

But Darwin did not write a book titled How Existing Species Change Over Time. He wrote a book titled The Origin of Species. In other words, Darwin attempted to explain macroevolution the origin of new species, organs, and body plans.

What, then, is the relevance of ID or evolution to SARS-CoV-2? As we have seen, their relevance to the origin of the coronavirus is unclear. But what about their relevance to combating the disease, COVID-19? According to Darwinist Theodosius Dobzhansky (who distinguished between microevolution and macroevolution in the 1930s), nothing in biology makes sense except in the light of evolution. In 2003, Texas Tech University professor Michael Dini wrote:

The central, unifying principle of biology is the theory of evolution. How can someone who does not accept the most important theory in biology expect to properly practice in a field [medicine] that is so heavily based on biology?

Yet the measures being taken against the SARS-CoV-2 pandemic owe nothing to evolutionary theory. The use of quarantine to block the spread of disease began in the fourteenth century. In the 1790s, Edward Jenner vaccinated people to protect them from smallpox. In 1847, Hungarian obstetrician Ignc Semmelweis demonstrated that proper hand washing lowers mortality from infectious disease. The administration of oxygen to patients with labored breathing was first reported in the years just following the publication of The Origin of Species, but the practice was based on physiological and clinical considerations, not evolution. And if any treatments are found to cure COVID-19 or lessen its effects, they will come from the intelligently designed efforts of virologists, biochemists, and clinicians not evolutionary biologists.

Photo credit: Airman 1st Class Alexis Christian, via Peterson Air Force Base.

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PHOTO GALLERY: 7-Eleven Brings Evolution Store to the Big Apple – CSNews Online

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NEW YORK 7-Eleven Inc. openedits latest Evolution Store in a city known for its fast-paced lifestyles and ever-evolving landscape of innovation: the Big Apple.

Evolution Storesare real-time, real-life, experiential testing grounds where customers can try and buy the retailer's latest innovations in revolutionary new store formats. They are alsothe first 7-Eleven stores to integrate restaurant concepts into the store design.

TheNew York City 7-Eleven Evolution Store, located at 88 Greenwich St. in Manhattan, features Raise the Roost Chicken & Biscuits, a new Southern-inspired quick-serve concept that serves up made-from-scratch, hand-breaded fried chicken tenders.

Billed as "Chicken Worth Crossing the Road For," Raise the Roost offers a simple menu:made-from-scratch, hand-breaded fried chicken tenders with signature sauces; bone-in and boneless wings;signature chicken sandwiches;and breakfast sandwiches. The in-store proprietary restaurant offers both made-to-order and grab-and-go options.

"On-the-go customers are looking for high-quality, differentiated food options and 7-Eleven continues to explore new concepts that meet that demand," said 7-Eleven President and CEOJoseph DePinto. "Raise the Roost offers craveable food and generous portions at prices below what you'll find at most fried chicken establishments."

In addition to the Southern-inspired cuisine, this Evolution Store also offers:

7-Eleven held a grand opening forits NYC Evolution Store from 10 a.m. to 6 p.m. on Thursday, March 12. As part of the celebration, the retailer featured:

7-Eleven's NYC Evolution Store is the third of its kind. The retailer opened its first Evolution Store inDallas last year, followed by the second in Washington D.C., at 504 KSt. A San Diegostore at 3504 El Cajon Blvd. will open in the coming weeks.

"Today's customers expect even more than they did just a year ago when 7-Eleven opened its first Evolution Store inDallas," saidChris Tanco, 7-Eleven's executive vice president and chief operating officer. "Consumer feedback from that original store and the neighborhoods these new stores will serve helped our store development team refine and design this next generation of the 7-Eleven shopping experience. We have raised the bar for convenience and invite everyone to come experience it for themselves."

Based in Irving, Texas, 7-Eleven operates, franchises and/or licenses more than 70,000 stores in 17 countries, including 11,800 inNorth America.

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How cannabis and humans evolved together – Leafly

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Janet BurnsMarch 30, 2020

Cannabis and humans co-evolved over thousands of years, each helping the other thrive and expand across the planet. (Jesse Milns/Leafly)

For humans,like most species, surviving life on Earth isnt exactly easy. But thankfully were not in it alone.

For tens of thousands of years, Homo sapiens has been developing mutually beneficial relationships with other species, from dogs and cats to bacteria and breadfruit. These interactions have allowed our different life forms to evolve and flourish together. These relationships are examples ofmutualistic coevolution, which happens when multiple species beneficially affect each others progress over time.

Theyre also a key part of what Dr. Sunil K. Aggarwal calls humankinds evolutionary garden. Aggarwal is a physician, medical geographer, and co-founder of the Advanced Integrative Medical Science (AIMS) Institute in Seattle. In 2013, he published one of the foundational articles on the subject, Tis in our nature: taking the human-cannabis relationship seriously in health science and public policy, in the medical journalFrontiers in Psychiatry.

The garden he describes is acollection of plants, fungi, and animal secretions that people have cultivated since prehistory, and carried around the world, because of their usefulness for human health and survival, whether as food, medicine, clothing, or other vital supplies.

Most are still embraced today, from honey and grains to caffeine and aspirin. In the past century, however, some cultures have decided its a good idea to cordon off certain areas of that garden, despite a long evolutionary historyand current scientific datasuggesting otherwise.

These blacklisted species include plants and fungi that humans have carefully administered for millennia to treat some of our worst sicknesses and pain, of both body and mind: distilled opium plants for physical agony, for example, or psilocybin tea for processing some of lifes most difficult moments.

Many are powerful, and can even be dangerous (in classic or modern forms) without supervision and guidance. Some have multiple uses, but never caught on in certain cultures.

According to Aggarwal, however, and to a growing number of experts on history and biology, one forbidden species stands out as our biggest loss, and for likely being the single most useful plant that humans have ever gotten to knowand which may even have helped us become more human.

That plant, of course, is cannabis.

Current research indicates that humans have been cultivating cannabis for tens of thousands of years, but aspects of our biology suggest that the relationship reaches back much further.

As a medical geographer, Aggarwal has studied the path of numerous natural medicines in different cultures and around the globe, based on anthropological and archaeological evidence.

Cannabis is one of the oldest medicines on record, he says. Its been evolving across the planet for tens of millions of years, stemming from its sturdy ancestors in Central Asia. In fact, early cannabis seems to trace back to when the worlds tallest mountain range, the Himalayas, were forming.

Sixty million years ago, those mountains were formed by the Indian subcontinent hitting the Asian plate, Aggarwal explained in a phone interview. All life there had to adapt or die.

It created a unique opportunity for this ancestral plant, which appeared 40 to 50 million years ago, to become very active in production, he said. There was less oxygen, and increased UV radiation, so the plant had to develop quite a bit of hardiness.

In the millions of years since, cannabis has shown a remarkable ability to survive in a wide variety of climates, from scrub-like Cannabis ruderalis to bush-like Cannabis indica and tall-growing Cannabis sativa and their hybrids, which produce most of our cannabis flower and low-THC hemp today.

Cannabis also appears to have been chemically compatible with the brains of animals, including humans, for much of that time.

In response to its new, harsher environs near the Himalayas, Aggarwal said, the plant seemingly began to produce a wide range of terpenes and cannabinoid chemicals, which the human bodywith its balance-keeping endocannabinoid system, which relies on cannabinoid neuroreceptors throughout the body, and can be found in all vertebrate speciesis especially suited to process.

The endocannabinoid system is key to our overall health and wellness because it has a crucial role in homeostasis, the regulation of our major biological functions. Our bodies are constantly working to maintain a narrow operative balance, and cannabinoid compounds can trigger the endocannabinoid system to regain this important equilibrium throughout the body as needed.

Despite their name, cannabinoid chemicals arent unique to cannabis. The compound type CBG, from which all phytocannabinoid compounds are derived, is found in many other plants, like echinacea, turmeric, and kava, to name a few.

But cannabis robustly produces tons of them, Aggarwal said. As a result, people living near the Tibetan Plateau domesticated the plant early on and found a great number of uses. That includes the neurological side, which is very interesting, as well as good old nutrition, and fibers for cordage.

It affects our neurological circuits and has a very important role in protecting the brain from injury, and promoting feelings of relaxation, Aggarwal added. Physical and psychological trauma can disturb the brain, and sub-optimize it. The endocannabinoid system, and phytocannabinoids if need be, can set the brain on the path toward regeneration.

In short, Aggarwal said, this cannabis ancestor happened to make these compounds that bind to receptors in the human system which tap into an even older evolutionarily evolved biological system, which goes back 600 million years: a magnitude older in terms of stages of the formation of life.

Specifically, those receptor typesknown as CB1 and CB2 todaytrace back to when multicellular organisms were becoming multicellular and were trying to figure out how to send communication and modulate action.

In biogenetic mapping, when you look at different species and map how old they are, you find cannabinoid receptors going back, and through today. In Homo sapiens, its a really integrated system for cell communication.

On the cellular level, cannabinoids are also particularly useful for their anti-inflammatory and antioxidant properties, throughout the body as well as the brain. These aspects help the body to maintain optimal performance across its systems from the intercellular level on up, like other natural supplements that ease the way for the body to do its job.

In terms of their antioxidant properties and neuroprotective properties, cannabinoids are certainly not the only game in town, Aggarwal said. But theyre pretty high up there.

Aside from archaeological and biological evidence, humankinds relationship with cannabis has been documented for thousands of years in printed language, and in oral histories that reach back even further.

As Aggarwal wrote in 2013, Cannabiss very name belies its longstanding relationship with humanity, as it was pragmatically given the species name Sativa in 1542 by German physician-botanist Leonhart Fuchs, meaning cultivated or useful in Latin.

Researcher Rob Clarke, whos written or co-authored numerous texts on cannabis history and biology, told Leafly that, simply put, cannabis seems to be one of the most useful plant that humans have ever come across. Plenty of plants are used for one purpose, and I can name a number of plants that are used for two purposes, he said. But I cant think of another one thats used for three.

For example, Palms provide us with food, and with fibers for clothing or shelter; bamboo is the same, he said. Other members of the garden provide us with both food and drugs, such as numerous fruits, roots, and grains that people have long eaten but also fermented into alcohol,like cannabis evolutionary cousin hops.

But cannabis has all three, Clarke said: Food, fiber, and drugs. Meaning that, from just one kind of crop, humans can get an important source of protein, fiber for building and crafting, and medical or cultural tools for our minds and bodies.

Martin Lee, co-founder and director of Project CBD and the author of several books on cannabis, explained in an interview with Leafly that plants, like humans, have ways of dealing with stressors, and expressing that stress physically. Cannabis plants do it through chemical signals, odors, things like that, said Lee. Plants under stressif theyre being eaten by insects or whateverhave evolved to communicate with their environment to deal with those stressors.

They might have a smell that attracts a predator of the thing attacking the plant, or that will keep potential predators away. And it so happens that these same smells, the same molecules that [cannabis] uses to deal with stress, are very helpful to the human brain in dealing with stress.

Cannabis goes back a long way as a plant ally to humankind, he added.

In fact, it even seems possible that cannabis particularly helped kickstart our evolution toward being the big-brained, culture-prone critical thinkers we are today. This could have occurred for practical, nutritional, or psychoactive reasons, or (like the plant itself) as a mixture.

In terms of humans neurological development and nutrition, Lee explained, Agriculture is really a turning point as the beginning of hoarding and carbohydrate farming, which was different from earlier diets. He continued, Its possible that cannabis is the first agricultural plant, and its certainly one of the very, very early ones. And cannabis is unique because its so versatile.

Today, Lee noted, humans are finding all kinds of new ways to use it (whether in food, medicine, industrial or artisanal fabrics, hempcrete, fuel, or many other forms), as well as better ways to appreciate its psychoactive effects. But as obvious as its usefulness in human lives and history may be, theres one thing we may never know about cannabis: how the first humans got high.

We can only speculate how people first discovered cannabis psychoactive aspects, Lee reflected. Its hard to imagine it would have come through eating it but, for various reasons, you can imagine they inhaled smoke accidentally.

Janet Burns is a freelance writer based in Brooklyn who finds drugs, tech, labor, and culture extremely interesting, among other things. She also hosts the cannabis news and conversation podcast The Toke.

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Article The evolution of awareness in the pandemic age – BCS

Posted: at 6:53 am

However, the overall impact of this transient biological form goes well beyond that of the obvious danger to public health and has, sadly, also manifested in related digital exposures born out of, but not limited to:

a) Bad Practicesb) Unpreparednessc) Exposures created by the imposed new ways of workingd) Crime.

The first element to consider is that of the imposed way of working for business users, which may also touch on state of unpreparedness. Granted, there will be those organisations who have planned for, or practice security for out of office operations, but there are also many more who may fall into the category of unpreparedness. For example, when an operative is situated within the business premises, they are (hopefully) working under robust operational policies, are accommodated with secure communications and digital defence facilities, and are supported by those everyday, taken-for-granted invisible elements which provision physical security. However, once we step outside the box of the ring-fenced operational environment, we are, as they say, on our own!

It is in such circumstances as these, when we may see the creep of insecurity enter the unanticipated, extended perimeter of commercial operations impacting the absence of the overarching working security framework of robust policies and the accommodation of real-time pragmatic defences. For example, data which has been quickly migrated onto some spare USB device, or which has been sent by insecure communications lines. And just think about the home-based multi-family computer, upon which such data may be stored and processed; or, maybe it is the generated hard copy waste that finds its way into the household waste. All these, and more add to the increased levels of digital exposure - and this default presence of potential imposed insecurity, can also impact those who have prepared for such extended perimeter of operation conditions. After all, people are only human after all!

In a time of national, or indeed international upheaval, there is an enhanced opportunity for cyber crime with existing vulnerabilities and new opportunities being exploited by hackers and organised crime actors. Such criminal, parasitic activities as these may be born out of extraction of funds through some Covid-19 scam, or unsolicited communication claiming to be from the WHO (World Health Organisation); or maybe, the old game of taking control of the local IT asset with the underlying intention of onward exploitation for whatever purpose - all of which are every day, common-or-garden dangers we face at work - but all of a sudden, by the circumstance of imposition, one could infer such risks have been exacerbated by our new ways of imposed working!

Sadly, we also live in a world which is darkened by some state sponsored actors (SSA) such as North Korea, who have already been caught with their hands in the digital till. It is here where we see the aspect of a biological agent such as Covid-19 imposing disruption and fear to the global population, where such SSAs see this as an opportunity. For example, remember the WannaCry Cyber Attack on the NHS which gave the UK tax-payer 92m bill? The attack resulted in over 19,000 appointments being cancelled - some of which resulted in death! As such, C-19 presents the opportunity which, again, allows some SSAs to target their cyber-armoury against a known vulnerable target.

One noted technology minded member of the House of Lords, with whom I had a remote conversation, this week, raised a very good point insofar as Her Majestys government (HMG) do not have any public text alerting system in place. If there was, it could have been leveraged over the first weekend of stricter isolating measures in March (2020) when the public parks and cities were crowded for recreational purposes, against all government advice! Here, such an alerting system could have been used to publish a go home muppets communication.

With the younger members of our society spending their educational study time at home, this presents yet another knock-on opportunity for those predatory actors within our communities. Such actors as these are of course very much aware that young Johnny or Sally will be most likely spending time on the internet to busy their minds during this period of ultimate boredom - remembering that the youth / children of our age are amongst the most socially-active members of the online world. Here, during the C-19 pandemic there has, sadly, been a noted increase in predatory activities manifesting out of the corrupt minds of online abusers. Parents and Guardians alike must remind those in their care about the dangers of the online world - and where possible put in place not only parental defensive controls, but also active supervision.

We now find ourselves in a new age of business continuity which is teaching us that we need to commercially evolve and accept that remote working will become a necessary part of business as usual. Here, we will see that world of Cloud becoming embraced, with out-of-band services moving towards the centre of the normal graph. Video conferencing tools such as Zoom will replace the need to attend face-to-face meetings. The delivery of training, such as services being now delivered by Dubai based Meirc, will become an everyday occurrence, or a necessary commercial evolution that will work to underpin the continuance of operations.

The time has also arrived to review those business continuity policies and plans, to stress test them for accuracy and to ensure they are both fit for purpose, and pragmatic to serve the circumstance. At the same time, it may be wise to check how data will be made available to those business users who are not able to attend the. It is worth remembering that secure access controls are of paramount importance when dealing with commercially sensitive data assets.

Data privacy regulations are, or should be, at the forefront of the corporate governance mindset, and thus, as we move further away from the over-shadowing hand of internal controls, so the potential of not meeting all compliance expectations increases. Remembering, the mandated expectations of standards such as GDPR travel in tandem with their related data assets, so the need to ensure that all external users, handlers, processors and custodians are fully educated and aware of the mandated safeguards is essential. After all, any adverse occurrence will certainly find the path back to the parenting organisation in the form of reputational damage or a fine.

Last, but not least, as introduced above, we must be aware of the need to protect the information assets we are the custodians of, which is asserted by the said number of standards. Thus we must start to think both of logical and physical security, and the use of storage devices, like the certified istorage mobile and desk based FIPS-140 / 2 diskAshur products. No longer will that USB thumb drive, sitting in the desk drawer be considered the to-hand solution for data migration - or should I say exfiltration!

Mankind can very resilient when it comes down to the wire, and in the face of the C-19 pandemic, time has arrived to don the fighting spirit against this unseen aggressor. From health to security,e time has come to fight the good fight. No longer is it a case of your country needs you, on his war-footing it is more a case of your planet needs you.

Take care, stay safe and keep washing your hands!

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