Skip to main content

The context you need, when you need it

When news breaks, you need to understand what actually matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our own.

We rely on readers like you to fund our journalism. Will you support our work and become a Vox Member today?

Join now

Congress wants to send a person to Mars — but doesn’t want to pay the bill

A rendering of SLS, the rocket system being developed for an eventual Mars mission.
A rendering of SLS, the rocket system being developed for an eventual Mars mission.
A rendering of SLS, the rocket system being developed for an eventual Mars mission.
(NASA/MSFC)

Congress has given NASA a mandate to put a human on Mars. It hasn’t, however, given the space agency enough money to do it.

Outside experts have been pointing out this absurdity for some time. On Wednesday, Congress heard it directly from NASA’s Inspector General Paul Martin, the person charged with overseeing the space agency.

The problem is simple: NASA is currently developing a space capsule (called Orion) and rocket system (called SLS) that could theoretically take astronauts to Mars, as ordered by Congress. But as Martin explained in his testimony before the House, lawmakers haven’t given NASA enough money to develop the technology needed to use these systems for a Mars mission:

Even after the SLS and Orion are fully developed and ready to transport crew NASA will continue to face significant challenges concerning the long-term sustainability of its human exploration program. For example, unless NASA begins a program to develop landers and surface systems its astronauts will be limited to orbital missions of Mars. Given the time and money necessary to develop these systems, it is unlikely that NASA would be able to conduct any manned surface exploration missions until the late 2030s at the earliest.

Budget limitations, Martin added, are forcing NASA to develop the plan to go to Mars piecemeal — building a rocket system now, and hoping it’ll get the money to build a lander later. For an analogy, imagine building the foundation to a new house before knowing whether you’ll get a mortgage to pay for the rest of it.

This approach, Martin notes, typically causes schedule and cost overruns. But it can also lead to an even more absurd scenario: it’s entirely possible that NASA will complete SLS — the largest rocket ever — by 2018, but have no money to actually do anything with it for a decade.

“SLS and Orion, by themselves, cannot do very much,” John Logsdon, former director of the Space Policy Institute, told me earlier this month. “And there’s just not going to be enough money for an exploration program unless something changes drastically.”

This analysis comes just a day after Ted Cruz, conducting his first hearing as chair of the Senate’s Subcommittee on Science, Space and Competitiveness, stressed the importance of putting a person on Mars. But so far, neither he nor other politicians have given any indication of how that’d actually be possible.

Further reading: For NASA, sending a person to Mars is simple. Dealing with Congress is hard.

More in Space

Future Perfect
Human bodies aren’t ready to travel to Mars. Space medicine can help.Human bodies aren’t ready to travel to Mars. Space medicine can help.
Future Perfect

Protecting astronauts in space — and maybe even Mars — will help transform health on Earth.

By Shayna Korol
Podcasts
The importance of space toilets, explainedThe importance of space toilets, explained
Podcast
Podcasts

Houston, we have a plumbing problem.

By Peter Balonon-Rosen and Sean Rameswaram
Future Perfect
Humanity’s return to the moon is a deeply religious missionHumanity’s return to the moon is a deeply religious mission
Future Perfect

Space barons like Jeff Bezos and Elon Musk don’t seem religious. But their quest to colonize outer space is.

By Sigal Samuel
Today, Explained newsletter
America is going back to the moonAmerica is going back to the moon
Today, Explained newsletter

Artemis II and the new space race, explained

By Caitlin Dewey
Future Perfect
NASA’s first medical evacuation is here. It won’t be the last.NASA’s first medical evacuation is here. It won’t be the last.
Future Perfect

Inside the unprecedented early return from the International Space Station.

By Shayna Korol
Future Perfect
50,000 clandestine Starlink terminals are keeping Iranians in touch with the rest of the world50,000 clandestine Starlink terminals are keeping Iranians in touch with the rest of the world
Future Perfect

Satellites are our only insight into the ongoing conflict — and worth protecting.

By Shayna Korol