NASA announces it is ending the MAVEN mission after the Mars Atmosphere and Volatile Evolution spacecraft stops responding and remains unreachable. Multiple outlets report that NASA last received a signal from MAVEN on Dec. 6, 2025, and that the agency had been unable to reestablish communications for about six months before declaring the mission over. MAVEN enters Mars orbit in 2014 and was originally planned for a one- to two-year mission, but it operates for more than a decade, extending well beyond its primary duration. NASA states that the spacecraft’s systems were functioning normally earlier, and that MAVEN experienced an unexpected loss of signal after passing behind Mars in December. While some reporting notes findings from a mishap review board, NASA officials in the coverage generally do not confirm detailed fault causes publicly at this time. NASA holds a media call/teleconference to mark the end of the mission, emphasizing that the spacecraft’s long-running observations contributed to understanding how Mars lost much of its atmosphere and evolved into its current environment. NASA indicates a final report is expected later.