| Key Aspect | Details |
|---|---|
| Event | NASA loses contact with MAVEN Mars orbiter. |
| Date of Last Contact | December 4, 2025 (last full health data transmission). |
| Blackout Period | Expected signal loss on December 6 (behind Mars). |
| Communication Failure | Deep Space Network failed to detect MAVEN's signal post-blackout. |
| Partial Data Recovery | Suggests unexpected rotation and possible orbit change. |
| NASA's Response | Public confirmation on December 9, 2025; attempts to re-establish link. |
| MAVEN's Mission | Mars Atmosphere and Volatile Evolution (launched Nov 2013, operational since Sep 2014). |
| Primary Objectives | Study Mars' upper atmosphere, solar interactions, and atmospheric loss. |
| Secondary Role | Communication relay for rovers (Curiosity, Perseverance). |
| Backup Orbiters | Mars Reconnaissance Orbiter, Mars Odyssey, European orbiters now handling relay duties. |
| Comparison with Mangalyaan | India's Mars Orbiter Mission (2014) was a tech demonstrator; MAVEN a long-term science mission. |
| Mission Duration | Designed for 2 years, operational for over 10 years. |
| Correct Full Form of MAVEN | B. Mars Atmosphere and Volatile Evolution |
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