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Watch live: SpaceX mission to resupply space station – Palm Beach Post (blog)
Posted: August 11, 2017 at 5:50 pm
SpaceX is set to embark on its 12th mission to resupply the International Space Station on Monday from Kennedy Space Center.
The launch is scheduled for 12:31 p.m. from the centers historic pad 39A, which was the site of the Apollo 11 Saturn V rocket launch that took humans to the moon in 1969. It also saw the first and last space shuttle missions during the 30-year shuttle program.
Check The Palm Beach Post radar map.
Mondays mission will use a Falcon 9 rocket to launch the Dragon vehicle to the space station loaded with more than 6,000-pounds of supplies and experiments.
The Falcon 9s reusable first stage will attempt a controlled landing at Cape Canaveral Air Force Station.
The missions are broadcast live on SpaceXs website, and usually also available on NASA TV.
SpaceXs Falcon 9 and Dragon lift off from Launch Pad 39A on Feb. 19, 2017
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Space Station ‘Air Bed’: Astronaut Jack Fisher Gives Some Wild Answers in Live Interview – Space.com
Posted: at 5:50 pm
The NASA podcast, "Houston, We Have a Podcast," conducted a Facebook Live interview with astronaut Jack Fischer. Here, Fischer is seen upside down, as he changed his pose after every question.
How's it going in space? Awesome, just like every day, said NASA astronaut Jack Fischer, speaking live from the International Space Station redefining the meaning of long-distance conversation.
Fischer joined the first live taping of NASA's "Houston, We Have a Podcast" on Thursday afternoon (Aug. 10). The spaceman spoke with two hosts, Gary Jordan and Dan Huot, and answered questions from the people who tuned in to the Facebook Live event, such as, "Do you get insomnia in space?"
The session appeared to be a natural extension for Fischer, who has a strong following on Twitter, at 88,000 followers. A reason he is such a favorite for so many is his unabashed way of expressing the wonders he sees aboard the ISS. Fischer was formerly an Air Force test pilot, and he said he was "lucky" to be selected from out among such a talented applicant pool to launch to the space station in April 2017 as a flight engineer for Expedition 51. This is Fischer's first trip to space. [Southern Lights Dazzle in Spectacular Time-Lapse Video from Space (Video)]
Expedition 51 Flight Engineer Jack Fischer of NASA is seen inside the International Space Station in his spacesuit during a fit check, in preparation for the 200th spacewalk at the station. It was also Fischer's first spacewalk, and occurred on May 12, 2017.
Although Fischer is living the astronaut experience for the first time, he is not shy about using funny phrases like "boats of yum" for floating space station meals, or "biggest slice of awesome pie I've ever seen" to describe the landmark 200th space station spacewalk that he had the honor of performing.
During the show, it seemed the hosts of the podcast were just as enthusiastic as the astronaut, and got quite animated about their chance to speak to a space station resident.
"Wrap your mind around it we are talking to somebody in space," NASA spokesperson Dan Huot said during the program's introduction. Two weeks ago, Huot witnessed a colleague in Baikonur, Kazakhstan, get a phone call from the space station, and shared during the live session that it is "so incredible [that] we live in this time."
Jordan's first question to Fischer was, "How's today in space?" and the astronaut, brimming with energy, replied, "It's awesome! Like it is every day!" After every question, Fischer floated into different positions, perhaps showing off his new mastery of moving in microgravity. He did add, "Don't ask Peggy [Whitson] how many things I've knocked over."
Fischer also revealed that in order to adjust to his new home in the best way, he studies which mannerisms the space crew have adopted, asking himself questions like, "How is Peggy cutting her food packet?"
Viewers also learned some less humorous, more personal details about Fischer. He said he's excited about the cancer-combating research the space crew is conducting because his own daughter battled the disease. The newbie astronaut also likes sleeping in microgravity ("like sleeping in an air bed") because on Earth he suffered from back pain as a result of his previous work as an Air Force pilot.
Previous episodes of "Houston, We Have a Podcast" are available on the NASA website.
Follow Doris Elin Salazar on Twitter @salazar_elin.Follow us@Spacedotcom,FacebookandGoogle+. Original article onSpace.com.
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Space Station 'Air Bed': Astronaut Jack Fisher Gives Some Wild Answers in Live Interview - Space.com
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New mission going to the space station to explore mysteries of ‘cosmic rain’ – Phys.Org
Posted: at 5:50 pm
August 11, 2017 by Francis Reddy From its new vantage point on the International Space Station's Japanese Experiment Module - Exposed Facility, the Cosmic Ray Energetics and Mass (ISS-CREAM) mission, shown in the inset illustration, will study cosmic rays to determine their sources and acceleration mechanisms. Credit: NASA
A new experiment set for an Aug. 14 launch to the International Space Station will provide an unprecedented look at a rain of particles from deep space, called cosmic rays, that constantly showers our planet. The Cosmic Ray Energetics And Mass mission destined for the International Space Station (ISS-CREAM) is designed to measure the highest-energy particles of any detector yet flown in space.
CREAM was originally developed as a part of NASA's Balloon Program, during which it returned measurements from around 120,000 feet in seven flights between 2004 and 2016.
"The CREAM balloon experiment achieved a total sky exposure of 191 days, a record for any balloon-borne astronomical experiment," said Eun-Suk Seo, a professor of physics at the University of Maryland in College Park and the experiment's principal investigator. "Operating on the space station will increase our exposure by over 10 times, taking us well beyond the traditional energy limits of direct measurements."
Sporting new instruments, as well as refurbished versions of detectors originally used on balloon flights over Antarctica, the refrigerator-sized, 1.4-ton (1,300 kilogram) ISS-CREAM experiment will be delivered to the space station as part of the 12th SpaceX commercial resupply service mission. Once there, ISS-CREAM will be moved to the Exposed Facility platform extending from Kibo, the Japanese Experiment Module.
From this orbital perch, ISS-CREAM is expected to study the "cosmic rain" for three yearstime needed to provide unparalleled direct measurements of rare high-energy cosmic rays.
At energies above about 1 billion electron volts, most cosmic rays come to us from beyond our solar system. Various lines of evidence, including observations from NASA's Fermi Gamma-ray Space Telescope, support the idea that shock waves from the expanding debris of stars that exploded as supernovas accelerate cosmic rays up to energies of 1,000 trillion electron volts (PeV). That's 10 million times the energy of medical proton beams used to treat cancer. ISS-CREAM data will allow scientists to examine how sources other than supernova remnants contribute to the population of cosmic rays.
Protons are the most common cosmic ray particles, but electrons, helium nuclei and the nuclei of heavier elements make up a small percentage. All are direct samples of matter from interstellar space. But because the particles are electrically charged, they interact with galactic magnetic fields, causing them to wander in their journey to Earth. This scrambles their paths and makes it impossible to trace cosmic ray particles back to their sources.
"An additional challenge is that the flux of particles striking any detector decreases steadily with higher energies," said ISS-CREAM co-investigator Jason Link, a researcher at NASA's Goddard Space Flight Center in Greenbelt, Maryland. "So to better explore higher energies, we either need a much bigger detector or much more observing time. Operating on the space station provides us with this extra time."
Large ground-based systems study cosmic rays at energies greater than 1 PeV by making Earth's atmosphere the detector. When a cosmic ray strikes the nucleus of a gas molecule in the atmosphere, both explode in a shower of subatomic shrapnel that triggers a wider cascade of particle collisions. Some of these secondary particles reach detectors on the ground, providing information scientists can use to infer the properties of the original cosmic ray.
These secondaries also produce an interfering background that limited the effectiveness of CREAM's balloon operations. Removing that background is another advantage of relocating to orbit.
With decreasing numbers of particles at increasing energies, the cosmic ray spectrum vaguely resembles the profile of a human leg. At PeV energies, this decline abruptly steepens, forming a detail scientists call the "knee." ISS-CREAM is the first space mission capable of measuring the low flux of cosmic rays at energies approaching the knee.
"The origin of the knee and other features remain longstanding mysteries," Seo said. "Many scenarios have been proposed to explain them, but we don't know which is correct."
Astronomers don't think supernova remnants are capable of powering cosmic rays beyond the PeV range, so the knee may be shaped in part by the drop-off of their cosmic rays in this region.
"High-energy cosmic rays carry a great deal of information about our interstellar neighborhood and our galaxy, but we haven't been able to read these messages very clearly," said co-investigator John Mitchell at Goddard. "ISS-CREAM represents one significant step in this direction."
ISS-CREAM detects cosmic ray particles when they slam into the matter making up its instruments. First, a silicon charge detector measures the electrical charge of incoming particles, then layers of carbon provide targets that encourage impacts, producing cascades of particles that stream into electrical and optical detectors below while a calorimeter determines their energy. Two scintillator-based detector systems provide the ability to discern between singly charged electrons and protons. All told, ISS-CREAM can distinguish electrons, protons and atomic nuclei as massive as iron as they crash through the instruments.
ISS-CREAM will join two other cosmic ray experiments already working on the space station. The Alpha Magnetic Spectrometer (AMS-02), led by an international collaboration sponsored by the U.S. Department of Energy, is mapping cosmic rays up to a trillion electron volts, and the Japan-led Calorimetric Electron Telescope (CALET), also located on the Kibo Exposed Facility, is dedicated to studying cosmic ray electrons.
Overall management of ISS-CREAM and integration for its space station application was provided by NASA's Wallops Flight Facility on Virginia's Eastern Shore. ISS-CREAM was developed as part of an international collaboration led by the University of Maryland at College Park, which includes teams from NASA Goddard, Penn State University in University Park, Pennsylvania, and Northern Kentucky University in Highland Heights, as well as collaborating institutions in the Republic of Korea, Mexico and France.
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The SpaceX Dragon cargo spacecraft is targeted for launch August 14 from Kennedy Space Center for its twelfth commercial resupply (CRS-12) mission to the International Space Station.
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To infinity and beyond: Chan couple’s son heads to space station – SW News Media
Posted: at 5:50 pm
After Sept. 13, you'll want to take a closer look at the International Space Station as it passes by in the night sky, because a Chanhassen NASA astronaut will be aboard.
Well, OK. Mark Vande Hei doesn't live in Chanhassen. But his parents Tom and Mary Vande Hei do.
Last Saturday, they proudly hosted a bon voyage party. He heads to the space station on Sept. 13, from the Baikonur Cosmodrome in Kazakhstan. He'll be in space for five and a half months.
Before guests arrived, Vande Hei, 50, sat down to talk about his upcoming mission.
He flies to Russia on Saturday, Aug. 12, to prepare. Then Sept. 13, he and NASA astronaut Joe Acaba, and cosmonaut Alexander Misurkin of the Russian space agency Roscosmos, will launch to the space station aboard the Soyuz MS-06 spacecraft.
Once there, they'll participate in scientific projects and experiments, and help with the operation and maintenance of the space station. He'll be living in zero gravity, bunking in a cubby about the size of a shower stall, and enjoying the greatest view of Earth from the cupola of the space station.
Vande Hei grew up in Plymouth, and is a Benilde-St. Margaret's School graduate. As a kid, he thought that being an astronaut "was cool," Vande Hei said. "You think of astronauts being super heroes, like Superman."
He graduated from St. John's University and was commissioned in the U.S. Army through ROTC. He was assigned to Italy, and later Iraq, as a combat engineer.
The Army sent him to Stanford University for a master's of science degree. In 1999, he became an assistant professor of physics at the United States Military Academy in West Point. It was there that Vande Hei switched his focus to space operations.
After a tour of duty in Iraq, he became a space operations officer. In 2006, he reported to Johnson Space Center as a capsule communicator in the Mission Control Center Houston. In 2008, NASA started asking for astronaut applicants with military backgrounds. His boss passed him an application.
"I thought that would be amazing, but the competition is so tough."
He credits his wife, Julie, for encouraging him.
"Mark, youve got to do it, otherwise youll never know," he recalled. "Without Julie, I may never have ever gotten off couch."
He passed NASA's thorough physical and a series of interviews and psychological testing, a process that winnows applicants down to 40 or 50 individuals.
Applicants undergo a round of interviews with a panel of up to 12 or 15 engineers, astronauts, flight directors and high-level managers from both Johnson and Kennedy space centers; if you're called back, the next round of interviews takes a week.
"The first interview " Vande Hei shook his head at the memory. "They said, 'Tell us about yourself.' Fifty-nine minutes later, I realized I had talked the whole time." But he made the cut, and paced himself. "I made the second interview more conversational."
Like any competitive situation, he and the other applicants would gather during their free time, comparing notes. "What questions did they askyou? You hear all the horror stories," Vande Hei said. "You don't know what questions they'll ask."
"By convincing myself I wouldnt get the job," Vande Hei said. "I looked at it as having a deluxe tourist pass into areas of NASA no other person would have an opportunity to see. I approached it with curiosity as opposed to 'My whole life rests on this entire hour,' especially if your dream was to become an astronaut."
He sees himself as enormously fortunate. When speaking to school kids, he's a little embarrassed admitting being an astronaut wasn't his No. 1 career goal.
"I didn't know what I wanted to be when I grew up," Vande Hei said. "But I kept saying yes to any opportunities that let me keep learning more."
Vande Hei was assigned to a mission in 2015, and has been in training for it ever since. He spends half his time in Russia and half in the U.S.
Training for his first flight into space has less to do with the physical effects of flight, but learning the instrument panel and controls that get you to the space station. Astronauts train in a space craft mock-up with full-scale models of the interior. Space walks are practiced underwater.
Astronauts conduct all types of science experiments during their time aboard the space station, using themselves as subjects for blood draws, muscle and bone density tests, and other physiological studies.
And they are trained as medics, mechanics, electricians, plumbers, and any other skill set necessary to ensure a well-run and maintained workshop and living quarters in the isolation of space. Vande Hei said they even learn dental procedures in the event an astronaut has a dental emergency.
It's a multi-team effort as all the training drills include the ground control team. "The space station is really flown by the ground crew," Vande Hei said, "and they become more and more important the farther we get from earth." Drills test not only the astronauts but even more crucially, mission control.
Earlier this year, Vande Hei had a raffle at his alma mater Benilde-St. Margaret's. He'll take the two winners' high school ID badges up to the space station with him, giving them bragging rights when he returns them in 2018. He plans on taking family photos with him that he'll shoot selfies with. And, of course, he'll have his wedding ring.
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Ready For Launch: Deerfield Student Experiment Headed To Space Station – Patch.com
Posted: at 5:50 pm
Patch.com | Ready For Launch: Deerfield Student Experiment Headed To Space Station Patch.com It's made up of five Deerfield High School students who won the top division at the inaugural Go For Launch! program last year, and the team is set to witness the launch of its student-designed experiment up to the International Space Station (ISS) on ... |
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Ready For Launch: Deerfield Student Experiment Headed To Space Station - Patch.com
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NASA Television to Air Six-Hour Spacewalk at International Space Station – PR Newswire (press release)
Posted: at 5:50 pm
WASHINGTON, Aug. 11, 2017 /PRNewswire-USNewswire/ -- Two Russian cosmonauts will venture outside the International Space Station Thursday, Aug. 17, to deploy several nanosatellites, collect research samples and perform structural maintenance. Coverage of the spacewalk will begin at 10 a.m. EDT on NASA Television and the agency's website.
Expedition 52 Commander Fyodor Yurchikhin and Flight Engineer Sergey Ryazanskiy, of the Russian space agency Roscosmos, will don their spacesuits and exit the station's Pirs airlock at approximately 10:45 a.m.
Ryazanskiy will begin the schedule of extravehicular activities with the manual deployment of five nanosatellites from a ladder outside the airlock. The satellites, each of which has a mass of about 11 pounds, have a variety of purposes.
One of the satellites, with casings made using 3-D printing technology, will test the effect of the low-Earth-orbit environment on the composition of 3-D printed materials. Another satellite contains recorded greetings to the people of Earth in 11 languages. A third satellite commemorates the 60th anniversary of the Sputnik 1 launch and the 160th anniversary of the birth of Russian scientist Konstantin Tsiolkovsky.
The spacewalkers also will collect residue samples from various locations outside the Russian segment of the station and install handrails and struts to facilitate future excursions.
Yurchikhin will be designated extravehicular crew member 1 (EV1) for this spacewalk, the ninth of his career. Ryazanskiy, embarking on his fourth spacewalk, will be extravehicular crew member 2 (EV2). Both will wear Russian Orlan spacesuits bearing blue stripes. The spacewalk will be the 202nd in support of space station assembly and maintenance and the seventh spacewalk this year.
Check out the full NASA TV schedule and video streaming information at:
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NASA Television to Air Six-Hour Spacewalk at International Space Station - PR Newswire (press release)
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It’s No Joke. NASA Needs Someone to Stop Us Polluting Outer Space – Newsweek
Posted: at 5:49 pm
Last week it was reported that on August 14 NASA will begin accepting applications to become its new Planetary Protection Officer.
The job post, which notes a cushy six-figure salary, immediately kicked off a spate of sensational headlines, though the positions actual responsibilities mostly consist of preventing the transfer of microorganisms from Earth to other planets and vice versa to prevent biological contamination during space missions.
For some, the discovery that, rather than activating cosmic shields to defend against alien invasions, the Planetary Protection Officer will more likely be focusing on keeping spacecrafts spotlessly clean, might seem disappointing. Its actually refreshing.
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In an article in New York magazine, The Uninhabitable Earth, journalist David Wallace-Wells prophesizes a litany of potential global warming disasters, including lethal heat waves, global drought, and perpetual war.
Other oft-predicted doomsday scenarios have involved nuclear holocausts, genetically-engineered diseases and, in a particularly sci-fi-oriented example, machine uprisings.
What all of the above scenarios have in common is their roots in human innovation and adventurism.
American astronaut Joseph Tanner during a space walk as part of the STS-115 mission to the International Space Station, September 2006. NASA
Indeed, while our species may not actually bring about the Apocalypse, its hard to claim humanitys ambition has ever been tempered by an abundance of caution.
From land explorations to military conflicts to science and technology, our history has generally been long on hubris and short on humility. In some cases, the dangers were not even foreseeable.
Could the pioneering inventors and engineers of the Industrial Revolution, for instance, ever have imagined the potentially catastrophic effects that oil, coal and gasoline would have on the environment?
Today, as we continue to make ever greater strides in technological innovation, even some prominent tech leaders have expressed reservations. Teslas Elon Musk, for example, has repeatedly warned of the existential threat posed by artificial intelligence, likening A.I. to a demon being summoned by a guy with a pentagram who inevitably wont be able to control it.
In Silicon Valley, his concerns have mostly fallen on deaf ears, though the notion that our technology is outpacing our abilities to contend with it is hardly new. Biologist E.O. Wilson perhaps put it best when he described the essential human problem as follows: W e have Paleolithic emotions, medieval institutions, and god-like technology.
Meanwhile, Musks anxieties have fueled his mission to colonize Mars via his aerospace corporation, SpaceX, in the hopes that humanity may eventually become, in his words, a multi-planetary species.
Stephen Hawking, fearful Earth is on its way to becoming uninhabitable, also urges space colonization as a means for long-term survival. Amazon CEO Jeff Bezos, on the other hand, is confident this planet will always remain our home, but is convinced that colonizing space (including the moon) will enable our continued existence here. He aims for his own spaceflight company, Blue Origin, to be part of that process.
If a new Space Age is indeed upon us, it is essential that this new frontier be one area in which human beings know our proverbial place.
In this context, NASAs Planetary Protection Officer emerges as an unlikely hero and an important example for private spaceflight companies like Musks and Bezoss to follow.
In contrast to the fifteenth century European colonialists who visited disease and destruction upon the Americas, NASAs Planetary Protection Officer represents a careful and considerate explorer, intrepid in all the right ways, for all the right reasons.
Of course it can be argued that protecting planets from microscopic organisms is trivial stuff in comparison to close encounters with intelligent extraterrestrial beings. That is correct, and precisely what makes the task so important. It is undoubtedly in the care and concern over the minutia of interplanetary exploration that we set the tone for the entire enterprise.
Our relationship to space is unpredictable and still in its infancy, and an emphasis on responsibility, especially at this stage, is paramount. In that light, the Planetary Protection Officer is no less important than the title implies.
This summer saw the fourth hottest June in record-keeping history. In mid-July, an iceberg the size of Delaware broke off from Antarctica.
If, as many people fear, weve already damaged this world irrecoverably, its not too late to be more responsible with others.
Joseph Helmreich is the author of The Return (St. Martins Press, 2017), a science fiction novel about interplanetary conflict.
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It's No Joke. NASA Needs Someone to Stop Us Polluting Outer Space - Newsweek
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China’s Simulated Mars Colony Is its First Small Step to the Red Planet – Inverse
Posted: at 5:49 pm
The Chinese government has selected a desert rife with red cliffs as the location for its simulated Mars colony. Here, future astronauts will prepare for survival in a frigid world with world-spanning dust storms.
The official press agency of the Peoples Republic of China, Xinhua, announced Tuesday that the government will build a base in the high Tibetan Plateau in north-central China. Specifically, the base will be set in the Qaidam basin, a stark, remote land that looks quite Martian. In the image provided by Xinhua (above), the area looks like an extremely arid badlands country, with few plants and no water.
The base will include both a Mars community and a Mars campsite. Its intended for scientific colonization research, but to also stoke the Chinese publics interest in their deep-space ambitions. Its somewhat similar to the NASA Kennedy Space Centers Summer of Mars tour, currently whipping up Martian intrigue along the East coast. But this is a much gnarlier simulation, set in a place that compares to the stark, red planet.
The research component of the Chinese Mars base will likely be similar to NASAs Mars simulation colony, situated some 8,200 feet up on the active Hawaiian volcano, Mauna Loa. At such a high altitude, it is a chilly, barren land, blanketed in lava rock. Called the Hawaii Space Exploration Analog and Simulation, crews of six live in a domed habitat for up to a year. These simulations allow scientists to understand how Martian crews set in tightly constrained and resource limited environments hold up both psychologically and physically.
For now, Chinese deep-space ambitions are dependent upon the success of its heavy-lifting Long March 5 rocket, which is currently in testing and production. At 187 feet tall and supplemented by four boosters, it is designed to launch 55,000 pounds into lower Earth orbit and send about 18,000 pounds to the moon.
In early July, the rocket failed about six minutes into its flight, for reasons the Chinese government identified as an anomaly. Before this launch disappointment, the Long March 5 was scheduled to send two landers to the moons surface in November, one of which would return back to Earth with moon rocks.
Its unclear if this rocket setback has derailed Chinas 2020 robotic endeavor to Mars. The Chinese rover looks similar to NASAs roving explorers, with six rugged wheels and a high mounted camera. It will carry a ground penetrating radar to study the soil and look for water and ice.
Chinese astronauts, once theyre finished training in high red deserts of the Tibetan Plateau, will need to know where to find reliable sources of ice. Theyll have to dig it up and melt it down if they hope to survive in a land more forbidding that any region on Earth.
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The Impossible Burger wouldn’t be possible without genetic engineering – Grist
Posted: at 5:49 pm
The Impossible Burger has had a charmed honeymoon period. Crowds of foodies surged into fancy eateries to try it. Environmentalists and animal rights activists swooned. So did investors: Impossible Foods brought in $75 million during its latest investment round.
Now the backlash is here. The activist organizations Friends of the Earth and the ETC Group dug up documents which they claim show that Impossible Foods ignored FDA warnings about safety and they handed them over to the New York Times.
The ensuing story depicted Impossible Foods as a culinary version of Uber disrupting so rapidly that its running headlong into government regulators. In reality, Impossible Foods has behaved like a pedestrian food company, working hand in hand with the FDA and following a well-worn path to comply with an arcane set of rules.
So why isnt this story a nothingburger?
In a word: GMOs. You see, soy leghemoglobin, or SLH, the key ingredient that makes the Impossible Burger uniquely meaty, is churned out by genetically modified yeast. This is a protein produced with genetic engineering; its a new food ingredient, Dana Perls, senior food and technology campaigner at Friends of the Earth, told me when I asked why theyd singled out Impossible Foods.
The company has never exactly hidden the fact that they used genetic engineering, but they havent put it front and center either. You have to dig into their frequently asked questions to catch that detail and thats a recent edit, according to Perls. When I first looked at the Impossible Foods website, maybe back in March, there was no mention of genetic engineering, she said.(An Impossible Foods spokesperson disputed Perlss claim, saying the FAQ has included references to genetic engineering for at least a year, since before the burgers launch in restaurants. But areview of cached webpages suggests the references were added in June.*)
By tiptoeing around this issue, Impossible Foods set themselves up for a takedown by anti-GMO campaigners. These groups monitor new applications of genetic engineering, watch for potentially incriminating evidence, then work with journalists to publicize it. In 2014, Ecover, a green cleaning company, announced it was using oils made by algae as part of its pledge to remove palm oil a major driver of deforestation from its products. When Friends of the Earth and the ETC Group figured out the algae was genetically engineered, they pinged the same Times writer. Ecover quickly went back to palm oil.
When I asked Impossible Foods founder Pat Brown about the GMO question, he said he didnt think that battle was theirs to fight. After all, the SLH may be produced by transgenic yeast, but it isnt a GMO itself. He also pointed out that this isnt unusual: nearly all cheese contains a GMO-produced enzyme.
But now, Friends of the Earth and the ETC Group have brought their battle to Impossible Foods doorstep. (In a blistering series of responses to the New York Times article, the company charged it was chock full of factual errors and misrepresentations and was instigated by an extremist anti-science group.) The FDA documents handed over to the Times include worrying sentences like this one: FDA stated that the current arguments at hand, individually and collectively, were not enough to establish the safety of SLH for consumption.
If FDA officials say your company hasnt done enough to convince them that a new ingredient is safe, arent you supposed to stop selling it?
Not according to a risk expert at Arizona State University who reviewed the documents released by activists. There are no indications that they should have pulled this off the market, Andrew Maynard told me.
Thats just not how the food safety review process works, said Gary Yingling, a former FDA official now helping Impossible Foods navigate the bureaucracy. In the United States, its up to the companies themselves to determine if an ingredient is safe. (Not everyone likes that system or thinks the FDA is doing enough to protect public safety, but it is the law.)
Impossible worked with a group of experts at universities who decided in 2014 that their burger was safe. SLH, it turns out, grows naturally in the roots of soy plants, and the proteins in the burger look a lot like animal proteins a good indicator of safety.
Impossible could have stopped there: Companies, however, can ask the government to weigh in on their research. Sometimes, the FDA asks for more information, which is what happened with Impossible Foods. Its not unusual for the FDA to determine it cant establish the safety of a new ingredient its happened more than 100 times, with substances like Ginkgo biloba, gum arabic, and Spirulina. The FDA has called for more information in about one in every seven of the ingredients companies have asked it to review.
In the case of SLH, the FDA suggested more tests, including rat-feeding trials. Impossible Foods has finished these tests, and academics who have studied the new data confirmed that its generally recognized as safe. Next, Impossible Foods will bring the new evidence back to the FDA, Yingling said.
The criticism raised in this case is really criticism of a system that allows companies to decide for themselves if a new ingredient is OK to add to our food.
If a company decides something is safe, they can go ahead and do it, said Maynard, the risk expert. So thats a weakness in the system. On the other hand, you can argue that once you start this process with the FDA, they have smart scientists who ask tough questions. You can see in those documents that the level of due diligence that a company has to go through is really pretty deep. You really want to make sure that you have a system that doesnt inhibit innovation, but captures as much potentially harmful things as possible.
Each new innovation creates the potential for new hazards. We can block some of those hazards by taking precautions. But how high should we put the precautionary bar?
Impossible Burger could indeed pose some unknown hazard. We just have to weigh that against the known hazards of the present foodborne diseases in meat, greenhouse gases from animal production, the development of antibiotic resistant bacteria in farms, and animal suffering. These are problems which Impossible Foods is trying to solve.
There are other companies trying to solve these problems. (Friends of the Earth notes that the success of non-animal burgers, like the non-GMO Beyond Burger, demonstrates that plant-based animal substitutes can succeed without resorting to genetic engineering.) But its not yet clear that any of these companies including Impossible Foods will be successful in just generating a profit, let alone in replacing the global meat industry. No one knows which startups will pan out. And well probably need to try and discard lots of new things as we shift to a sustainable path.
Trying new things can be risky. Not trying new things and staying on our current trajectory is even more risky.
*This story has been updated to include a response from Impossible Foods about when references to genetic engineering first appeared in its FAQ, and to add information about the FDAs food safety review process.
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The Impossible Burger wouldn't be possible without genetic engineering - Grist
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Genetically Engineering Pigs to Grow Organs for People – The Atlantic
Posted: at 5:49 pm
The idea of transplanting organs from pigs into humans has been around for a long time. And for a long time, xenotransplantsor putting organs from one species into anotherhas come up against two seemingly insurmountable problems.
The first problem is fairly intuitive: Pig organs provoke a massive and destructive immune response in humansfar more so than an organ from another person. The second problem is less obvious: Pig genomes are rife with DNA sequences of viruses that can infect human cells. In the 1990s, the pharmaceutical giant Novartis planned to throw as much $1 billion at animal-to-human transplant research, only to shutter its research unit after several years of failed experiments.
Quite suddenly, however, solving these two problems has become much easier and much faster thanks to the gene-editing technology CRISPR. With CRISPR, scientists can knock out the pig genes that trigger the human immune response. And they can inactivate the virusescalled porcine endogenous retroviruses, or PERVsthat lurk in the pig genome.
On Thursday, scientists working for a startup called eGenesis reported the birth of 37 PERV-free baby pigs in China, 15 of them still surviving. The black-and-white piglets are now several months old, and they belong to a breed of miniature pigs that will grow no bigger than 150 poundswith organs just the right size for transplant into adult humans.
eGenesis spun out of the lab of the Harvard geneticist George Church, who previously reported inactivating 62 copies of PERV from pig cells in 2015. But the jump from specialized pig cells that grow well in labs to living PERV-free piglets wasnt easy.
We didnt even know we could have viable pigs, says Luhan Yang, a former graduate student in Churchs lab and co-founder of eGenesis. When her team first tried to edit all 62 copies in pig cells that they wanted to turn into embryos, the cells died. They were more sensitive than the specialized cell lines. Eventually Yang and her team figured out a chemical cocktail that could keep these cells alive through the gene-editing process. This technique could be useful in large-scale gene-editing projects unrelated to xenotransplants, too.
When Yang and her team first inactivated PERV from cells in a lab, my colleague Ed Yong suggested that the work was an example of CRISPRs power rather than a huge breakthrough in pig-to-human transplants, given the challenges of immune compatibility. And true, Yang and Church come at this research as CRISPR pioneers, but not experts in transplantation. At a gathering of organ-transplantation researchers last Friday, Church said that his team had identified about 45 genes to make pig organs more compatible with humans, though he was open to more suggestions. I would bet we are not as sophisticated as we should be because weve only been recently invited [to meetings like this], he said. Its an active area of research for eGenesis, though Yang declined to disclose what the company has accomplished so far.
Its great genetic-engineering work. Its an accomplishment to inactivate that many genes, says Joseph Tector, a xenotransplant researcher at the University of Alabama at Birmingham.
Researchers like Tector, who is also a transplant surgeon, have been chipping away at the problem of immune incompatibility for years, though. CRISPR has sped up that research, too. The first pig gene implicated in the human immune response as one involved in making a molecule called alpha-gal. Making a pig that lacked alpha-gal via older genetic-engineering methods took three years. Now from concept to pig on the ground, its probably six months, says Tector.
Using CRISPR, his team has created a triple-knockout pig that lacks alpha-gal as well as two other genes involved in molecules that that provoke the human immune systems immediate hyperacute rejection of pig organs. For about 30 percent of people, the organs from these triple-knockout pigs should not cause hyperacute rejection. Tector thinks the patients who receive these pig organs could then be treated with the same immunosuppressant drugs that recipients take after an ordinary human-to-human transplant.
Tector and David Cooper, another transplant pioneer, were both recently recruited to the University of Alabama at Birmingham for a xenotransplant program funded by United Therapeutics, a Maryland biotech company that wants to manufacture transplantable organs.
Cooper has transplanted kidneys from pigs engineered by United Therapeutics to have six mutations, which lasted over 200 days in baboons. The result is promising enough that he says human trials could begin soon. These pigs were not created using CRISPR and they are not PERV-free, though recent research has suggested that PERV may not be that harmful to humans. It will be up to the FDA to decide whether pig organs with PERV are safe enough to transplant into people.
If it happens, routine pig-to-human transplants could truly transform healthcare beyond simply increasing the supply. Organs would go from a product of chancesomeone young and healthy dying, unexpectedlyto the product of a standardized manufacturing process. Its going to make such a huge difference that I dont think its possible to conceive of it, says Cooper. Organ transplants would no longer have to be emergency surgeries, requiring planes to deliver organs and surgical teams to scramble at any hour. Organs from pigs can be harvested on a schedule, and surgeries planned for exact times during the day. A patient that comes in with kidney failure could get a kidney the next dayeliminating the need for large dialysis centers. Hospital ICU beds will no longer be taken up by patients waiting for a heart transplant.
With the ability to engineer a donor pig, pig organs can go beyond simply matching a human organ. For example, Cooper says, you could engineer organs to protect themselves from the immune system in the long term, perhaps by making their own localized dose of immunosuppressant drugs.
'Big Pork' Wants to Get In on Organ Transplants
At last Fridays summit, Church speculated about making organs resistant to tumors or viruses. When an audience member asked about the possibility of genetically enhancing pig organs to work as well as Michael Phelpss lungs or Usain Bolts heart, he responded, We not only can but should enhance pig organs, even if were opposed to enhancing human beings ... They will go through safety and efficacy testing, but part of efficacy is making sure theyre robust and maybe they have to be as robust as Michael Phelps in order to do the job.
Xenotransplantation will raise ethical questions, of course, and genetically enhancing pigs might come uncomfortably close to the plot of Okja. These enhancements are hard to fathom for now because scientist dont yet know what genes to alter if they wanted to make, for example, super lungs. Its taken decades of research to pinpoint the handful of genes that could make pig organs simply compatible with humans. But the technical ability to make any editsor even dozens of edits at oncewith CRISPR is already here.
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