NASA said that the Maven spacecraft stopped sending messages after it went behind Mars last weekend. The spacecraft had worked well before this problem. Maven has studied the air around Mars and helped explain how the planet changed over time. It also helped send messages between NASA’s rovers and other spacecraft.

NASA engineers are checking the system to learn what happened. They want to locate the problem and confirm if the spacecraft can connect again. The team hopes to maintain communication, but they know that solar activity can sometimes disrupt signals in space. NASA will continue to monitor other Mars orbiters while trying to fix the issue.