Category Archives: Spacex

Tesla and SpaceX are constantly in the news, for reasonspositiveandnegative. Whats undeniable is that both companies are doing incredible work in the arenas of electric cars and spaceflight, powered by thousands of ultra-skilled workers. What tech skills are these companies looking for?

For an answer, we can turn to Emsi Burning Glass, which collects and analyzes millions of job postings from across the country. Based on that data, we can analyze the skills that popped up most in Teslas job postings over the past 90 days. Take a look at the chart:

As you can see, Tesla is intensely interested in technologists who areskilled in Python, which is an ultra-popular generalist language. It also needs employees skilled in the principles of software engineering andproject management; given the complexity of projects (and challenges) facing the automaker, whoever takes those engineering and management roles will certainly have to be very, very good at multitasking.

Over at SpaceX, Python is also critical, along with Linux, C++, software engineering, and a bunch of health-related skills (its easy to surmise the lattermost deal with astronaut health in some way). Heres the overall skills breakdown over the past 90 days:

At both Tesla and SpaceX, job interviews will focus on your problem-solving abilities. Although Elon Musk, CEO of both companies, likely doesnt interview every single engineering candidate anymore, hetold the World Government Summitin 2017 that he liked asking interviewees, Tell me about some of the most difficult problems you worked on and how you solved them.

Chances are good that hiring managers and recruiters at both companies ask some variation of that question. And to be fair, its a straightforward line of questioning: If you can describe how you solved a problem in granular detail, your potential for landing a job at either company will rise. (If you werent responsible for tackling your previous companies challenges, by contrast, you likely wont be able to provide anything besides generalitiesand youll be in serious trouble.)

Even if youre not applying for a job at Tesla or SpaceX, keep in mind that providing as much detail as possible in response to job-interview questions is always important. Youll give the recruiter and/or hiring manager a better picture of how exactly youll add value to your prospective employer, including your unique approach to problems.

Before heading into any interview, its key to review a few relevant stories from your professional background. Rehearse beforehand, preferably with a friend or trusted colleague. If you know ahead of time that the interviewwill involve a whiteboard or keyboard test, practice with a few online challenges or tests before your interview.

One last, fun thing to mention: Musk has also asked prospective SpaceX engineers a fun little brainteaser:

Youre standing on the surface of the Earth. You walk one mile south, one mile west, and one mile north. You end up exactly where you started. Where are you?

The easy answer: the North Pole. However, as you can tell from the comments when we originally posted the question on Dice,there are lots of creative responses(still on Earth, anywhere with a broken compass, and so on). Although tech companies have largely stopped asking brainteasers in favor of other kinds of questions, theyre still a fun way to demonstrate how you think through a problem.

Membership has its benefits. Sign up for a free Dice profile, add your resume, discover great career insights and set your tech career in motion. Register now

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30 Tech Skills That Tesla, SpaceX Want from Job Candidates - Dice Insights

It has been 11 years since Elon Musk's SpaceX completed its first successful rocket test flight, so it's worth taking a look at some of the biggest successes and failures that have followed since.

Arguably the companys biggest win came when it launched two astronauts into space in May 2020, making it the first time astronauts had flown into orbit on board a rocket built by a private company.

Robert Behnken and Douglas Hurley also became the first astronauts in a decade to blast off into space from US soil, as they spent 19 hours in orbit before docking with the International Space Station (ISS), roughly 250 miles above the Earth.

Another successful launch saw SpaceX beat the world record for the number of satellites sent to space on a single rocket.

In January this year, the company sent 143 satellites into space on board its Falcon rocket, beating the previous record by 39 held by an Indian spacecraft since 2017.

SpaceX has also seen some pretty significant failures revolving around explosions, particularly in the last two years.

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In February 2020, the Starship SN1 burst apart during a pressure test at its launchpad in Boca Chica, Texas, USA, while undergoing a liquid nitrogen pressure test.

The midsection of the prototype buckled, then shot upwards before smashing into the ground.

Just three months later in May, the Starship SN4 had a fiery explosion very soon after a rocket engine test.

The dramatic failure happened only a minute after a short test of its Raptor rocket engine, but immediately after the explosion it was unclear what caused the conflagration.

Then in December 2020, the Starship SN8 rocket crashed and exploded in a huge fireball after it narrowly missed its landing pad.

Dramatic footage showed the unmanned rocket blowing up as it smashed into the ground after having soared to 40,000ft where it managed to collect significant data.

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March this year saw the Starship SN10 prototype rocket also burst into flames, exploding just a few minutes after successfully landing on a concrete pad.

The rocket stood upright on the ground for about 10 minutes before suddenly bursting up with its tail in flames due to a possible methane leak.

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Inside SpaceXs successes and failures from huge explosions to putting men in space - Daily Star

On Black Friday, SpaceX CEO Elon Musk sent an anxious email to his companys employees, urging them to work over the weekend on SpaceXs Raptor engine line and describing the production situation as a crisis. In the email, a copy of which was obtained by The Verge, Musk argued that the company faces a genuine risk of bankruptcy if production doesnt increase to support a high flight rate of the companys new Starship rocket next year.

The Raptor is SpaceXs massive methane engine that will be used to propel the companys next-generation launch system, called Starship. SpaceX plans to use Starship to take people to deep space, and in April, NASA awarded SpaceX a $2.9 billion contract to develop Starship as a lunar lander to transport astronauts to the Moons surface as early as 2025. SpaceX has been hard at work developing and testing Starship prototypes at the companys test site in Boca Chica, Texas, though the company has yet to launch the vehicle to orbit.

SpaceX is currently hoping to conduct Starships first orbital launch in either January or February of 2022, according to a presentation given by Musk to the National Academies of Sciences on November 17th. However, according to Musks email, SpaceX needs to launch Starship at least once every two weeks next year to keep the company afloat. And apparently, Raptor engine development isnt on track at the moment.

In the email, first reported by SpaceExplored and CNBC, Musk claimed that after key senior management departed the company, SpaceX personnel looked deeper into issues surrounding Raptor production and found them to be far more severe than was reported. Two vice presidents, one of whom worked on Raptor engine development, recently left the company, CNBC reported this month.

I was going to take this weekend off, as my first weekend off in a long time, but instead I will be on the Raptor line all night and through the weekend, Musk wrote in the email. He also urged employees to come in for an all hands on deck situation unless they had critical family matters or could not physically return to Hawthorne, the location of SpaceXs headquarters in California.

While Starship will ultimately be used to transport people to deep space, Musk also stressed the vehicles role in launching the companys next-generation Starlink satellites. Starlink is SpaceXs ambitious initiative to launch a mega-constellation of nearly 12,000 satellites to provide broadband Internet coverage to users all over the Earth. So far, SpaceX has launched more than 1,800 Starlink satellites and is currently serving roughly 140,000 users in more than 20 countries, according to a presentation SpaceX gave to the Federal Communication Commission on November 10th.

However, SpaceX has only launched the first version of its Starlink satellites, known as Version 1 or V1. Most of those satellites dont have lasers allowing them to communicate with one another, though recent launches have included this capability. Eventually, SpaceX plans to launch its Version 2 or V2 satellites, which are much more massive and will include laser communication. And per his email, Musk claims that Starship is the only rocket that can launch these larger satellites.

Falcon has neither the volume *nor* the mass to orbit needed for satellite V2, Musk wrote, adding that Satellite V1 by itself is financially weak, whereas V2 is strong. SpaceX filed an amendment with the FCC in August, proposing changes to its satellites with plans to launch them on Starship. In the email, Musk also noted that SpaceX will be ramping up production of its user dishes, which customers must buy in order to tap into the Starlink V2 satellites. Musk says the terminals will be useless unless the new satellites are ready to handle the bandwidth demand.

Its hard to know for sure if SpaceX is truly in dire straights. SpaceX did not respond to a request for a comment from The Verge. Later today, Musk responded to coverage of the email, saying that bankruptcy is unlikely, but not impossible, if a severe global recession hits.

This isnt the first time Musk has called on his employees to rally and work long hours or risk bankruptcy. In 2018, Musk claimed that his other company, Tesla, came within single-digit weeks of collapse over problems with the production of the Model 3. Since then, Tesla has rebounded and recently surpassed a $1 trillion valuation.

Read the entire email from Musk below:

Unfortunately, the Raptor production crisis is much worse than it seemed a few weeks ago. As we have dug into the issues following exiting prior senior management, they have unfortunately turned out to be far more severe than was reported. There is no way to sugarcoat this.

I was going to take this weekend off, as my first weekend off in a long time, but instead I will be on the Raptor line all night and through the weekend.

Unless you have critical family matters or cannot physically return to Hawthorne, we need all hands on deck to recover from what is, quite frankly, a disaster.

The consequences for SpaceX if we cant get enough reliable Raptors made is that we then cant fly Starship, which means we then cant fly Starlink Satellite V2 (Falcon has neither the volume *nor* the mass to orbit needed for satellite V2). Satellite V1 by itself is financially weak, whereas V2 is strong.

In addition, we are spooling up terminal production to several million units per year, which will consume massive capital, assuming that satellite V2 will be on orbit to handle the bandwidth demand. These terminals will be useless otherwise.

What it comes down to is that we face genuine risk of bankruptcy if we cannot achieve a Starship flight rate of at least once every two weeks next year.

Thanks,

Elon

Update November 30th, 4:30PM ET: This story was updated to include a tweet from Elon Musk.

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Elon Musk says Raptor engine production is a disaster that puts SpaceX at risk of bankruptcy - The Verge

https://www.youtube.com/watch?v=uZ52ZFb1Sjs

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When will SpaceX Starship SN20 launch & go to the Mars, Moon? How will SpaceX prevent extinction? Asteroid Impact Wiped Out The Dinosaurs, SpaceX

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Welcome to the latest SpaceX Starship updates video from TheSpaceXFans. We have another Starlink launch coming up soon hopefully to kick off the standard

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SpaceX Starship Updates! Starship 21 Continuing to Progress! Ship 22 Stacking Begins! TheSpaceXShow | SpaceX News - Oakland News Now

Running more than 30 minutes ahead of schedule, the SpaceX Crew-3 astronauts docked to the International Space Station at 5:32 p.m. CSTNov. 11, less than 24 hours after launching from NASAs Kennedy Space Center.

NASA astronauts Raja Chari,Tom Marshburn, andKayla Barron, and European Space Agency astronaut Matthias Maurer opened the hatch of their Crew Dragon spacecraft Enduranceat 7:25 and participated in a welcome ceremony with their new Expedition 66 crewmatesat 8.

On board to welcome them were fellow astronaut Mark Vande Hei, Expedition 66 Commander Anton Shkaplerov and Flight Engineer Pyotr Dubrov of Roscosmos. Joining the welcome ceremony from Earth were Kathy Lueders, NASA associate administrator for Space Operations, and Josef Aschbacher, European Space Agencydirector-general.

The Crew Dragon launched atop SpaceXs Falcon 9 rocket from Launch Complex 39A at 8:03 p.m. Nov. 10.

NASAs partnership with SpaceX is not only critical for cutting-edge research, but also for international collaboration, NASA Administrator Bill Nelson said. The space station brings together nations around the world for the benefit of all.

During their six-month stay aboard the orbiting laboratory, Chari, Marshburn, Barron, and Maurer will join the Expedition 66 crew in conducting a number of science and research investigations. Some of these include afood physiologyexperiment that will study the impacts of an enhanced spaceflight diet on astronaut health, asensorthat will test a set of LED beacons with whichAstrobeefree-flying robots will interact during formation flight maneuvers, and a Human Research Programprojectthat will collect a set of core measurements related to human spaceflight risks from astronauts before, during, and after long-duration missions.

The Payload Operations Integration Center at NASAs Marshall Space Flight Center is the agencys primary space station science command post. The payload operations team coordinates all U.S., European, Japanese, and Canadian scientific and commercial experiments on the station, synchronizes payload activities of international partners, and directs communications between station crew members and researchers around the world.

Crew-3 is the third of six crew rotation missions NASA and SpaceX will fly as part of the agencysCommercial Crew Program. This is the first flight for Chari, Barron, and Maurer, and the third for Marshburn, who flew on STS-127 and Expedition 34/35.

The commercial crew team at Marshall, led by Steve Gaddis, has a long working relationship with SpaceX, having worked with the commercial partner to improve safety and reliability of the Merlin engines, stage propulsion, Draco and SuperDraco thrusters, the abort and flight termination systems, structures, materials and processes, fracture control, and integrated performance analyses.

Our team members did an excellent job supporting the Crew-3 mission, Gaddis said. Even though they made it look easy, our crew worked many challenging issues over the last four months to help ensure mission success. Their attitudes and teamwork were amazing!

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SpaceX Crew-3 astronauts arrive at Space Station | Technology Today | theredstonerocket.com - Theredstonerocket

In May 2021, I stood in my garden outside Cambridge, U.K., and watched a train of bright specks race across the night sky. These specks were Starlink satellites, 60 of them in total, freshly launched and speeding their way to join the other 1,500 which currently orbit the Earth. These satellites promise to provide cheap, reliable internet to anyone in the world. They also promise to make life very, very difficult for astronomers.

This mega-constellation of Starlink satellites is the brainchild of Elon Musks company SpaceX. Their plan is something straight out of science fiction: put 42,000 satellites into orbit, and broadcast wireless internet to anyone and everyone, all of the time. Early reviews have been... less than stellar (unreliable, inconsistent, and foiled by even the merest suggestion of trees, said The Verge). But the tech will no doubt improve. Like it or not, ubiquitous Starlink internet is coming.

Theres also no reason to think that SpaceX is the only player in town. A number of other companies and countries are all planning their own satellite mega-constellations, from Amazon (3,236 satellites as part of Project Kuiper), OneWeb, and Boeing, to Chinas ambitious plan for a 13,000-strong swarm.

Astronomers like myself have been less than enthusiastic about the prospect of a night sky full of artificial satellites. Our most sensitive telescopes are designed to pick up the unimaginably faint signals from planets orbiting distant stars, and galaxies billions of years in the past. How did the first galaxies form after the Big Bang? How fast is the universe expanding? Are there any dangerous asteroids that might crash into Earth? Having tens of thousands of satellites criss-crossing the sky and obscuring the view is going to make answering these questions more difficult.

This is going to be a serious problem for some future projects. The Vera C. Rubin Observatory is an upcoming telescope, located under Chiles dark skies, that will have the unprecedented ability to photograph the entire sky every few nights. It promises to make massive strides in our understanding of dark energy and dark matter, the structure of our galaxy, and the hunt for our solar systems elusive Planet Nine.

It will also be severely impacted by satellite constellations. The telescope is sensitive enough to observe some of the faintest visible signals imaginable, with an extremely wide view of the sky. But that also means that satellite trails that cross its view show up as awful wide streaks that ruin the image. Up to a third of all the data taken by the telescope could be seriously affected, hampering its ability to study everything from near-Earth asteroids to the distant universe.

SpaceX has made some effort to dim their satellitesbut even the new black-painted versions, called DarkSat, are still pretty bright (they do not achieve the brightness goals recommended, according to the International Astronomical Union). And even if SpaceX plays nice with astronomers, the orbital gold-rush is only just getting started. We could have more than 100,000 satellites in orbit around Earth within the next 10 years.

The days of staring up into a clear night sky awash with stars might soon be over.

While these satellite swarms are going to make life difficult for astronomers observing the universe in visible light, they are set to be even more problematic for astronomers who work with radio wavesone of the most important tools in an astronomers cosmic toolbox. They are emitted by all kinds of things in space, from organic molecules to dying stars. Jodie Foster in the film Contact (playing Ellie Arroway) was listening to the universe using radio waves, and to this day telescopes involved in SETI, the search for extraterrestrial life, use these waves to scan the sky for signs of cosmic intelligence.

All of this work is in jeopardy. Satellite swarms have to communicate with humans on Earth, and they do so using radio waves. It wont take long before the effect of all these satellites becomes overwhelming: In 10 years time we could have 100,000 radio beacons in the sky, blasting our planet with a wall of radio noise capable of deafening even the most sensitive radio telescope.

The best radio telescope in the world is currently under construction. Dubbed the Square Kilometre Array (SKA)its comprised of individual radio dishes that take up a square kilometer of areait will be able to scan the sky 20,000 times faster than any existing instrument. Its so sensitive that it would be able to detect an airport radar on a planet tens of light-years away. But even the SKA will be no match for a sky full of satellites drowning out the faint signals from the universe.

Starlink satellites transmit at a frequency range right in the middle of SKAs Band 5ba part of the radio spectrum which astronomers use to hunt for complex organic molecules in space, hoping to understand the origin of life. The more satellites flying around Earth, the harder it will be to use this band for astronomy. Once there are 100,000 satellites up there, it will be a lost cause.

Starlink satellite reflections created bright streaks in images of the night sky taken by the Blanco 4-meter telescope at Cerro Tololo Inter-American Observatory.

CTIO/NOIRLab/NSF/AURA/DECam DELV

So what can astronomers do? Avoiding the satellite swarms might just be possible. But well have to think outside the boxone might even say outside of Earth.

The far side of the moon might just be the quietest place in the solar system. With over 2,000 miles of solid rock between you and the chatter from planet Earth, it would be the perfect place to get some peace and quiet. It might also be the perfect place for a radio telescope.

Or possibly radio telescopesplural. NASA has plans for several different lunar instruments, including FarSide and FarView (networks of linked radio antennas spread across the moons far side), plus the amazingly ambitious Lunar Crater Radio Telescope (which is exactly what it sounds like: a radio telescope built into a crater on the moon). These instruments would be able to study the universe without worrying about radio interference from our very loud and chatty planet.

It must be said that scientists were dreaming of lunar telescopes long before SpaceX began filling the skies with satellites. If Starlink disappeared tomorrow, there would still be a good reason to build a radio telescope on the moon. The longest wavelength radio waves (which astronomers use to study the universes first stars) are completely blocked by our ionosphere, and are disrupted by even the tiniest bit of radio interference. So we already had plans to build a telescope on the moon. The coming age of satellite mega-constellations just gives us a reason to hurry up.

These plans arent just idle speculation. In 2022 NASA will deliver a range of science experiments to the surface of the moon. Among these will be a machine to examine the radio wave environment, which will gather data critical to the design of future telescopes. Another experiment will land in 2024.

Artist's rendering of a robot laying out an antenna to the lunar surface as a part of the FarView concept.

Lunar Resources

And the U.S. isnt the only interested country. In 2019, Chinas Change-4 lander arrived on the far side of the moon armed with a low-frequency radio wave detector. It was testing the waters for yet another future telescope.

A telescope on the moon wont come cheap, of course. Building a large observatory on Earth costs hundreds of millions of dollars (at least!) and putting one on the Moon will multiply that into the tens of billions. The high cost, combined with the fact that astronomers are busy developing techniques to mitigate the effect of satellites on our images, means that lunar telescopes are not a one size fits all scientific magic bullet. After all, the invention of space telescopes didnt stop us building telescopes on the ground.

Things will be no different in the future. Telescopes on the moon will open another brand-new window to the universe, and will certainly reveal strange and wonderful things (including, we hope, the first stars which ended the cosmic dark ages after the Big Bang). Lunar telescopes will be another tool in our scientific toolkit, though certainly not the only tool we need.

The days of staring up into a clear night sky awash with stars might soon be over. Light pollution has already made stargazing all but impossible in big cities. With the coming age of endless satellite swarms, even our remotest dark skies are threatened. This is a tragedy: The sight of our universe, in all its splendor, is nothing less than a shared human birthright. But there are other worlds, and other skies. And the clearest, most pristine sky of all is waiting for us on the silent surface of the moon. We just need to take that one small step.

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SpaceX's Starlink Is Making Life Hell for Astronomers, But Telescopes on the Moon Could Fix That - The Daily Beast

Elon Musk said that making life multi-planetary when sustaining a suitable condition on Mars would pass a "great filter," something that is coming soon for people. This is a part of his online discussion regarding the importance of the NASA DART Mission, which the company has helped in fulfilling with its Falcon 9 rocket that helped in the process.

(Photo : Elon Musk via Twitter)

There are many "great filters" to achieve for humans, but one of which is the Tesla and SpaceX's CEO of making life multi-planetary and sustaining it when building a base on Mars. According to the world's top billionaire, life on Mars is one of the greatest filters that the current civilization and society can achieve, something that is also in the process for SpaceX.

The end goal of SpaceX is to make life "interstellar," and it is a process of having the ability to go between galaxies and deep space with ease, with the available technology known to man. Of course, that is not yet possible or achieved during the present, hence the many tests and studies made regarding it, with SpaceX in the middle.

Read Also: SpaceX to Use Starship Rockets to Build Mars Base Alpha; Uncrewed Flights Before Sending Humans

Alongside this, Musk has spewed his takeon the NASA DART mission, which SpaceX has taken on with their Falcon 9 to help launch the satellite that would crash into an asteroid and redirect its track.

However, the executive said that comets should also be a focus of this mission as there are a lot of comets that remain untraceable or undetected, bringing chaos or damage to the Earth, with one in 1992.

Elon Musk is known for talking about making human life multi-planetary, and it plans to do it first on Mars, bringing the first colony or "Mars Base Alpha" soon in the coming decades. The company plans to launch a Mars spacecraft, the Starship venture, to the Red Planet within this decade, something that the company is already working on with its ventures and soon test flights.

The work done by SpaceX is no joke, especially with its CEO aiming to bring the population to other planets that they can inhabit apart from Mars. To his belief, humans should be multi-planetary species, a race that can survive living on different planets as there is such a thing called "population collapse," inevitable for those of the coming generations.

The multi-tech billionaire is known for his dedication to bringing SpaceX and humans to Mars, and it is a goal of his to achieve this before his life expires as a legacy to those of the people of the future. His goals may resemble that of a sci-fi scenario, but it is something that has influenced the current society into believing that humans can go to space after decades of studying and exploring it.

Related Article: SpaceX Issues an Apology Over Delays in Starlink Internet Kit Shipping--What Could be the Reason Behind?

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Written by Isaiah Richard

2021 TECHTIMES.com All rights reserved. Do not reproduce without permission.

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Elon Musk to Pass a Great Filter When Making Life Multiplanetary in Mars, Discusses SpaceXs DART Importance - Tech Times

On Thursday, Leo Group announced that Tomales Bay Capital Andril III GP, LLC, a general partner of Tomales Bay Capital Andril III, L.P. (TBCA), sent an email to the company saying that they could not accept Leo Groups continued holding of LP shares, and planned to refund the contribution. The company responded immediately after receiving the email to express its objection.

As of November 24, 2021, TBCA has refunded the capital contribution of $50 million to Leo Group. Leo Group believes that there is no legal basis for TBCA to terminate the agreement, and it will not accept its return of investment funds and recovery of LP shares held by Leo Investments. The company reserves all rights to safeguard the interests, including but not limited to judicial proceedings.

This news has also caused many Chinese investors to complain about information uncertainty on a Chinese stock information exchange platform.

Previously, on the evening of November 16, Leo Group announced that its subsidiary Leo Investments Hong Kong Limited plans to invest $50 million in TBCA to participate in a partnership investing in SpaceX. According to the announcement, SpaceX is a leading space technology company, engaged in rocket launching, satellite communication, space transportation and other space exploration related businesses. The company was founded by Tesla founder Elon Musk in 2002.

As soon as the above news came out, it immediately attracted the attention of investors. On November 17 and November 18, Leo Group shares went up for two consecutive days, and hit a short-term new high of 3.08 yuan ($0.48) on November 19.

However, Leo Group also attracted regulatory attention. On November 18, the Shenzhen Stock Exchange sent a letter of concern to Leo Group regarding this investment, asking it to explain the specific arrangements and progress of investing in SpaceX. The informed questions include whether other approval procedures need to be performed, whether relevant agreements have been signed, and whether there are major uncertainties in the investment. The Shenzhen Stock Exchange required the company to reply to the letter in writing before November 22, 2021.

SEE ALSO: Tesla Decides Not to Apply Starlink Internet Services in Chinese Mainland

However, it was not until November 24 that Leo Group responded to the letter of concern from the Shenzhen Stock Exchange. In the reply, Leo Group stated that the company, as a limited partner, is currently unable to know the follow-up investment progress and arrangement, as well as the investment time and amount of other limited partners, and the company is uncertain whether it can finally complete the investment in the target company.

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Leo Group Receives TBCA Refund of $50 Million, Plans for Cooperation With SpaceX May Change - Pandaily

NASA's Double Asteroid Redirection Test (DART) spacecraft is put in the nosecone of SpaceX's Falcon 9 rocket in preparation for launch.

Ed Whitma / Johns Hopkins APL / NASA

Elon Musk's SpaceX is set to launch a first-of-its-kind planetary defense mission for NASA in the early hours of Wednesday morning, sending the spacecraft on its way to intentionally crash into an asteroid.

"We're smashing into an asteroid," NASA's Launch Services Program senior launch director Omar Baez said during a press conference. "I can't believe we're doing that"

Known as the Double Asteroid Redirection Test (or DART) mission, the space agency is trying to learn "how to deflect a threat that would come" toward Earth, NASA associate administrator of the science mission directorate Thomas Zurbuchen said.

"Rest assured, that rock right now is not a threat," he said.

SpaceX is launching DART on a Falcon 9 rocket from Vandenberg Space Force Base in California, with a liftoff window that begins at 1:20 a.m. ET on Wednesday.

DART is a 610-kilogram spacecraft that will spend 10 months traveling to a pair of asteroids, which are named Didymos and Dimorphos. Johns Hopkins Applied Physics Laboratory in Maryland built DART, while space company Redwire contributed the spacecraft's navigation and solar arrays that will power it.

The goal of the mission is to hit the smaller of the two asteroids, Dimorphos, with the spacecraft at about 15,000 miles per hour and see how the impact changes the asteroid's trajectory.

An overview of the DART mission plan.

NASA/Johns Hopkins APL

The DART mission is costing NASA about $330 million in total, with SpaceX having won a $69 million contract in 2019 for the launch. Not only is it NASA's first planetary defense mission, but DART also represents SpaceX's first mission launching a spacecraft to another planetary body.

"This is just the coolest mission. Thank you all for enabling SpaceX to be a part of a really important planetary defense mission," SpaceX director of civil satellite missions Julianna Scheiman said during a press conference.

SpaceX test fired its Falcon 9 rocket last Friday in preparation for the launch.

SpaceX's Falcon 9 rocket with the Double Asteroid Redirection Test, or DART, spacecraft onboard is seen during sunrise on Nov. 23, 2021 at Vandenberg Space Force Base in California.

Bill Ingalls / NASA

To give a sense of scale, the Dimorphos asteroid is about the size of the Great Pyramid of Giza, while the Didymos asteroid is wider in diameter than the One World Trade Center tower in New York City is tall. After arriving at the asteroids, and before it smashes into Dimorphos, the DART spacecraft will deploy a small cube satellite to take photos of the impact event.

While the mission is testing a method of planetary defense, Zurbuchen emphasized that NASA is not aware of any near-term risks to Earth. There are billions of asteroids and comets orbiting the sun, but only a few have a chance of hitting the Earth for a very long time.

"Of all the near Earth objects that we know today, none of them are a threat within 100 years or so," Zurbuchen said.

Infographic showing the sizes of the two asteroids in the Didymos system relative to some objects on Earth.

NASA/Johns Hopkins APL

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SpaceX is launching a NASA spacecraft that will crash into an asteroid - CNBC