惑星防衛

ExLabs says it will ride a modular spacecraft to asteroid Apophis, deploy CubeSat‑scale landers during the rock’s April 13, 2029 close pass, and hand students and small teams a ra… 3月 20, 2026

A bright fireball streaked across western Europe on 8 March 2026; the European Space Agency is probing the event after fragments reportedly punched a football‑sized hole in a Kobl… 3月 11, 2026

A new Science Advances study confirms NASA’s DART impact in 2022 produced the first measurable change to an asteroid pair’s orbit around the Sun, demonstrating kinetic impact as a… 3月 10, 2026

A Johns Hopkins experiment shows hardy microbes can survive the shock of asteroid ejection and much of the transit to another world, strengthening the lithopanspermia idea and rai… 3月 06, 2026

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

The International Asteroid Warning Network has announced a global astrometry campaign targeting interstellar comet 3I/ATLAS from late November 2025 through January 27, 2026. The e… 11月 13, 2025