Nasa confirms Maven spacecraft that went missing around Mars in 2025 lost forever

Nasa has confirmed the MAVEN spacecraft is unrecoverable after contact was lost behind Mars in December 2025. The end of the mission closes a major data relay role, even as its archive continues to guide Mars research and human exploration plans.

In Short

• Telemetry before the blackout showed the spacecraft was functioning normally
• A later data fragment indicated safe mode and unusually rapid spinning
• Investigators said uncontrolled rotation probably exhausted batteries and killed communications

Nasa has officially confirmed that its long-serving Mars Atmosphere and Volatile Evolution mission, better known as Maven, is lost forever after an unexpected anomaly severed contact with the spacecraft in December 2025.

The agency announced that an anomaly review board has determined the spacecraft is not recoverable and can no longer carry out its science or data relay missions around Mars.

Maven was last heard from on December 6, 2025, when it unexpectedly stopped communicating after passing behind the Red Planet.

WHAT HAPPENED TO THE MAVEN SPACECRAFT?

Telemetry received before the spacecraft disappeared showed all systems functioning normally.

However, when Maven emerged from behind Mars, Nasa’s Deep Space Network failed to detect any signal.

Analysis of a brief fragment of telemetry later revealed the spacecraft had entered safe mode and was spinning at an unusually high rate, suggesting a major disruption to its orbital trajectory.

Investigators concluded that the uncontrolled rotation likely drained the spacecraft’s batteries, causing its communications system to lose power permanently.

While the exact root cause of the anomaly remains under investigation, Nasa has begun the formal process of decommissioning the mission and archiving its extensive scientific data for future research.

WHAT WAS NASA'S MAVEN SPACECRAFT?

Launched in November 2013, Maven arrived at Mars in 2014 with the goal of studying the planet’s upper atmosphere and understanding how it lost much of the thick atmosphere that once may have supported liquid water.

Originally designed for a one-year mission, the spacecraft continued operating for more than 11 years, becoming one of Nasa’s most successful Mars orbiters.

“The science Maven has given us is key to informing what kind of radiation protection and safety measures we must take before sending humans to Mars,” said Louise Prockter, director of Nasa’s Planetary Science Division.

Throughout its mission, Maven transformed scientists’ understanding of how the Sun influences Mars. One of its earliest discoveries showed that solar storms dramatically increase the rate at which the Martian atmosphere is stripped away into space.

The spacecraft also became the first mission capable of simultaneously observing solar activity and Mars’ atmospheric response.

Maven made several other landmark discoveries. It identified previously unknown forms of auroras on Mars, directly observed atmospheric sputtering, the process by which energetic particles knock atmospheric gases into space, and revealed how massive dust storms can transport water high into the atmosphere, accelerating its escape from the planet.

The spacecraft also contributed to studies of interstellar comet 3I/ATLAS. They played a critical role in Nasa’s Mars Relay Network, transmitting vast amounts of data from rovers on the Martian surface back to Earth. During its operational life, Maven set a solar system record for relaying the most data from another planet in a single day.

According to principal investigator Shannon Curry, the mission resulted in more than 800 scientific publications.

Although the spacecraft has fallen silent, scientists say its treasure trove of data will continue to shape Mars research and future human exploration for decades to come.

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