InSight after landing
An illustration of NASA's InSight spacecraft after the deployment of its major instruments, a process that won't be completed until a few months after landing.

Engineers are still trying to understand why one of the main instruments on NASA’s InSight Mars lander is stuck just below the Martian surface.

This post is only available to members.

Jeff Foust has more than a decade of experience writing about space policy, entrepreneurial ventures and regulatory affairs. In 2001, he established spacetoday.net to aggregate and summarize the day's space-related news stories. In 2003, he started The...