NASA launched the Swift Boost mission earlier this month to try and save one of its aging science observatories, but the rescue spacecraft is now experiencing control issues.

For more than a decade, NASA’s Curiosity rover has been trudging up Mount Sharp, a 3-mile-tall (5-kilometer-tall) mountain at the center of the Gale Crater on Mars. Scientists believe lakes and streams covered the foothills of this peak billions of years ago, and Curiosity just found an abundance of evidence to support that hypothesis.