Autonomous AI in Space Exploration Raises New Stakes

Space was always supposed to be the final frontier of human exploration. It’s shaping up to be the final frontier for artificial intelligence too.

Last December, NASA’s Jet Propulsion Laboratory used Anthropic’s Claude models to help plan two Mars drives for the Perseverance rover, with human planners checking and adjusting the route before upload. In May, NASA and IBM put a compressed AI model on the International Space Station and a satellite to identify things like floods and clouds from orbit, the first model of its kind demonstrated in space. And in July, astronauts on the ISS tested a large language model to see if it could help with questions on maintenance procedures.

These experiments point to a larger shift in space engineering. For decades, engineers on Earth determined what a machine in space would do, and the machine would do exactly that. Now, researchers are testing whether nondeterministic systems like generative AI can give spacecraft more flexibility to interpret their surroundings, plan tasks, and one day make decisions for themselves. The technology is still far from trustworthy enough to hand over control of a spacecraft, but engineers are starting to ask whether they can afford not to do so as missions become more complex, distant, and numerous.

Why Spacecraft Need True Autonomy

Spacecraft have been operating autonomously for decades. But autonomy has never been the dominant model, in part because space engineers have prized systems whose behavior they can predict.

“Autonomy often does not have a deterministic outcome, which means that how you got into a certain situation changes the behavior,” says Robert Ambrose, the former chief of NASA’s Software, Robotics, and Simulation Division. “So if you come into the same situation but from different paths, the outcome could be different. And so engineers hate that.”

Ambrose spent much of his career working on autonomous systems at NASA, including autonomy for the Orion spacecraft, NASA’s deep space and lunar orbiter spacecraft, and Robonaut 2, a humanoid robot designed to work alongside astronauts that went to space in 2011. With Orion, he saw how quickly the testing problem could multiply. Engineers had to consider not just what the spacecraft might do, but all the different ways it could have arrived at a decision.

But Ambrose says engineers found ways to manage that complexity, including automating the testing itself. “We fought the challenges of autonomy using autonomy,” he says. “That actually works.”

The need for autonomy becomes even more obvious the farther a mission travels from Earth. Ambrose points to a possible mission to Europa, Jupiter’s ice-crusted moon, where a spacecraft could dive through a water plume erupting from beneath the surface. The plume could appear too quickly for engineers on Earth to direct the spacecraft into it.

“It’s up to the spacecraft to make a decision, and we’ll be watching what happened an hour ago,” he says….