恒星間天体

NASA has deactivated yet another instrument on the 47-year-old probe, engaging in a desperate, slow-motion power management game to stave off an irreversible thermal death. 4月 20, 2026

Data this week show interstellar comet 3I/Atlas slowed to near‑stop about 27 million km from Mars, forcing scientists to re-evaluate non‑gravitational forces and orbital models us… 2月 22, 2026

A rare interstellar visitor, 3I/ATLAS, has produced an unexpected sunward glow that has left scientists baffled. New multi‑telescope data shows unusual chemistry and morphology; a… 2月 17, 2026

Comet 3I/ATLAS—only the third confirmed interstellar object to visit our solar system—has been scanned by major radio and optical facilities; scientists report no signs of enginee… 1月 13, 2026

NASA’s Europa Clipper and other spacecraft have returned ultraviolet views of the interstellar comet 3I/ATLAS, validating flight hardware and mapping gas and dust while coordinate… 1月 09, 2026

The CIA issued a Glomar reply to a FOIA request about interstellar visitor 3I/ATLAS, prompting fresh debate about what intelligence agencies may quietly monitor even when NASA cal… 1月 08, 2026

Astronomers say interstellar comet 3I/ATLAS experienced a small acceleration that gravity alone can't explain. Here's what the measurements mean, how jets of gas can push a comet,… 12月 17, 2025

New images and telescope data show interstellar visitor 3I/ATLAS sporting a rare sunward anti‑tail whose orientation has shifted as the object nears its closest approach on 19 Dec… 12月 15, 2025

The UN has formally designated the interstellar comet 3I/ATLAS as the focus of a global planetary-defence drill, turning an unusual cosmic visitor into a real-world test of humani… 11月 27, 2025

Elon Musk warned on a recent podcast that the interstellar visitor 3I/ATLAS—while almost certainly not aimed at Earth—would be catastrophic if it ever struck the planet. Scientist… 11月 17, 2025

3I/ATLAS moved into solar conjunction on October 21 and will reach perihelion on October 29; post‑perihelion measurements will help distinguish natural and artificial‑origin hypot… 11月 12, 2025