Science, Discovery, Tech and Environment · 25 December 2025
NASA Loses Contact with MAVEN Mars Orbiter
Exam-focused facts from the 25 December 2025 current affairs briefing.
Key facts
- NASA has lost contact with the Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft after it passed behind Mars as seen from Earth.
- MAVEN entered orbit around Mars in September 2014 to study the planet’s upper atmosphere and interactions with the solar wind.
- The spacecraft uses a UHF antenna to relay communications between the Curiosity and Perseverance rovers and the Deep Space Network.
- In 2022, MAVEN switched to an “all-stellar” navigation system to reduce reliance on its inertial measurement units.