For the first time in 25 years of continuous International Space Station operations, NASA is preparing a medical evacuation after a crew member fell ill. The agency confirmed on January 8, 2026 that the astronaut is in stable condition and will return to Earth aboard SpaceX’s Crew Dragon.

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Comet 3I/ATLAS will make its closest approach to Earth on December 19, 2025, and can be watched via the Virtual Telescope Project live stream, scheduled to start at 04:00 UTC on December 19 (23:00 EST on December 18).

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Scientists have found a fragment of tracking data from MAVEN that suggests its orbital trajectory may have changed when re-emerged from behind Mars and lost contact with NASA on December 6, 2025.

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The Geminid meteor shower will peak on the night of December 13, 2025, with over 150 meteors per hour being visible during peak hours.

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A bright meteor streaked across the sky over Brazil’s Northeast region at nightfall on December 8, 2025, captured by Clima ao Vivo monitoring cameras in Pernambuco, Paraíba, and Ceará. Preliminary analysis by the Brazilian Meteor Observation Network (BRAMON) indicates the object entered the atmosphere at a speed of around 180 000 km/h (112 000 mph). The event coincided with the active Geminid meteor shower period, one of the most intense annual meteor streams visible from Earth.

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The exact moonrise time varies with longitude, so optimal viewing intervals depend on local conditions. After moonrise, observers can continue viewing by facing westward to minimize lunar glare.

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A newly discovered asteroid designated 2025 WE14 flew past Earth at a distance of 0.073 lunar distances at 18:44 UTC on November 29, 2025. The object was first detected by the Mt. Lemmon Survey on November 30 during a very short one-day observation arc.

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A newly discovered asteroid designated 2025 WV13 made a very close approach to Earth on November 27, 2025, passing at just 0.065 lunar distances.

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A very bright daylight fireball was observed over Puerto Rico and the Virgin Islands on November 23, 2025, streaking across the skies with a greenish glow.

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Ground-based observations on November 16 and 17, 2025 captured multiple jets on the interstellar object 3I/ATLAS, including sunward jets and an extended anti-tail. The images were obtained from telescopes in New Mexico, USA and France. A public online observation by the Virtual Telescope Project is scheduled at 04:15 UTC on November 19, 2025.

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