系外惑星

Researchers find planet that upends the textbook 'rocky-inside, gaseous-outside' view of planetary systems; new data on LHS 1903 point to late, inside‑out formation and force mode… 2月 22, 2026

Hubble observations show the Neptune-sized exoplanet GJ 3470b leaking a giant hydrogen cloud and shedding mass at a record rate. Astronomers say the planet may be on a long path t… 1月 19, 2026

NASA has finished assembling the Nancy Grace Roman Space Telescope at Goddard, advancing hardware and techniques that could reshape the hunt for habitable worlds and biosignatures… 12月 17, 2025

Researchers report detection of GJ 251 c, a rocky super-Earth candidate orbiting within its star's habitable zone less than 20 light-years away. The planet is a promising target f… 11月 14, 2025