Telemetry showed #spacecraft was working normally before passing behind Mars, but spacecraft did not resume communications after emerging from behind the planet.
MAVEN is newest of NASA’s 3 operational Mars orbiters. But NASA’s two other Mars orbiters have been in space for more than 20 years. The older of the two, named #MarsOdyssey, has been at Mars since 2001 and will soon run out of fuel
https://arstechnica.com/space/2025/12/nasa-just-lost-contact-with-a-mars-orbiter-and-will-soon-lose-another-one/



