Elon Musk speaks at the International Space Station Research and Development Conference in Washington, D.C. on July 19, 2017.
Aaron Bernstein/Reuters
Its been less than a year since Elon Musk announced his plans to settle humans on Mars during a talk in Guadalajara, Mexico. On stage at the International Astronautical Congress, the billionaire invoked the lore of Hitchhikers Guide to the Galaxy and Battlestar Galactica while describing a massive passenger ship loaded with the essentialsyou know, like a movie theater and a restaurant. SpaceX hoped to launch these breezy cruises to the red planet in the early 2030s.
Plot twist: Musk's original vision is no longer canon in his universe. On Wednesday, Musk took questions during a keynote discussion at the International Space Station R&D conference in Washington, DC. In between dad jokes about tunnel digging , a staple artificial intelligence threat assessment , and a spirited attempt to unpack the potential for interplanetary war, he candidly revealed a series of obstacles for SpaceX and its plan to build a city on Mars. SpaceX is rebooting its colonization plan, and may pivot to focus on a moon base that would aid that effort.
The Hawthorne, California-based spaceflight company has spent years touting propulsive landing technology for the next version of its Dragon spacecraft. SpaceX expected to equip the Dragon V2, rated for crew and cargo, with four small SuperDraco engines and deployable landing legs to allow for a guided surface touchdownfirst on the Earths surface, and then, maybe, on Mars. SpaceX was confident enough in the design to propose a variant of the vehicle Musk claimed would be able to land anywhere in the solar system.
The pitch for those uncrewed Red Dragon missions to Mars included a collaboration with NASA to gather landing data, test communications, and plan for potential contamination from Earth-based microbes. The space agency, of course, has its own boots-on-Mars ambitions, and hopes to send astronauts to the red planet aboard the Orion spacecraft by 2040. Musk would later compare Red Dragon launches to a train leaving the station, delivering cargo and science to Mars in preparation for a human mission.
But now, SpaceX has pulled the plug on its prologue to an interplanetary future.
Musk explained that Red Dragon was no longer in line with the evolving vision SpaceX has for getting to Marsspecifically, the part where you have to land on Mars . The company is hitting pause on the development of its propulsive landing technology on the Dragon V2 spacecraft. Musk argued that while the technology works, SpaceX would be put through the wringer trying to meet NASAs safety standards for landing a human crew on the ground. It doesnt seem like the right way to apply resources right now, Musk said. Im pretty confident that is not the right way, and that theres a far better approach. He later tweeted that SpaceX would still land with propulsive thrusters on Mars, but with a larger spacecraft.
SpaceX has had a busy year adding to its growing arsenal of recovered rockets while launching more times than any other year since its founding. The company also managed to re-fly both its Falcon 9 rocket and Dragon cargo capsule . In the flurry of praise surrounding rocket landings and Mars concepts, the fact that SpaceX has yet to attempt or complete a deep space mission of any kind still weighs on the companys future. Red Dragon would have been SpaceXs first toe into the deep end of the pool.
Its journey would have begun atop the triple-booster Falcon Heavy rocket, the famously-delayed launch vehicle that Musk claims has over twice the payload capability of a single Falcon 9 rocket, able to easily deliver 100,000 pounds to low-Earth orbit. At the ISS R&D conference, Musk invited the audience and those watching the livestream to witness the launch of the vehiclecurrently projected for this fallfrom Kennedy Space Center. But he followed with an uneasy disclaimer: Real good chance that vehicle doesnt make it to orbit.
That uncertainty doesnt bode well for Musks original Mars ambitions. Musk argued that the Falcon Heavy was impossible to test on the ground due to the machines complexity. And he said that development was far more difficult than SpaceX expected, admitting that the company was naive in its original projections. The simultaneous firing 27 orbital engines notwithstanding, launching a Falcon Heavy includes changing aerodynamics, heightened vibration, and an enormous thrust that pushes qualification levels of the flight hardware to the limit. Musk admitted on Wednesday that limited damage to former Apollo 11 Pad 39A would be a win in the aftermath of the Falcon Heavy test flight. Along with Musk, the audience laughed nervously.
According to Musks keynote this week, SpaceX is planning to scale down its Mars-bound spacecraft to a size suitable for a wider range of missionsmissions that would help pay for its development costs. A size reduction would certainly have a large economic impact on manufacturing, but savings could be augmented by focusing all efforts on a single reusable vehicle that could serve both low-Earth orbit and deep space. And Musk also offered that building a base on the moon is essential to getting the public excited about space again and would be an excellent stepping stone toward Mars.
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But is that a suggestion to another company? To NASA? Or is SpaceX going to unveil plans for a moon base as part of their updated Mars architecture?
Elon Musk has said that he would offer priority seating to NASA for missions to lunar orbit. SpaceX was the first private company to dock with the space station and the success between the federal space agency and the spaceflight company could point to a continuing partnership that expands beyond low Earth orbit. The ISS wont be around forever, and with NASA shifting toward deep space exploration, the opportunity to give the agency a lift is there. Especially if NASA wants to return to the moon.
But that doesnt mean SpaceX is abandoning its Mars ambitions; far from it. SpaceX owes much of its financial and development success to its partnership with NASA, and theres no doubt Musk will pursue that partnership beyond low-Earth orbit. That means that NASA astronauts could one day be flying on these deep space missions under lucrative taxpayer-funded contracts. Before then, SpaceX will have to fully prove its technology, along with life support systems and radiation protection for crewed missions.
Just a week ago, Musk dispatched SpaceX VP Tim Hughes to make the case for deep space in front of the Senate Subcommittee on Space, Science & Technology. Hughes used the success of SpaceX and NASAs commercial resupply missions and the governing Commercial Orbital Transportation Services program to make a case for partnership in deep space exploration. "To this day, Americas achievement of landing men on the moon and returning them safely to Earth likely represents humankinds greatest and most inspirational technological achievement, he said. Now, other nations like China seek to replicate an achievement America first accomplished 48 years ago. Maybe SpaceX can add private companies to the roster.
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