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10 stories from Planck Standard. Latest: July 17, 2026.
A chemical analysis of Barnard's Star suggests its four sub-Earth planets are packed with a rare deep-Earth mineral, stripped of atmospheres and locked in eternal day and night — utterly hostile to life just six light-years away.
Astronomers at Warwick and Colorado used Hubble's ultraviolet vision to pull four dead stars out of the glare of brighter companions — one just 25 light-years away, now the ninth-closest white dwarf to the Sun.
An astronomer argues that red dwarfs and white dwarfs are the best places to catch an alien megastructure, if one exists, by its telltale infrared afterglow.
New measurements slashed Gliese 3378b's estimated mass, tipping it from a likely gas world into a rocky planet sitting squarely in its star's habitable zone.
The newly characterized world, more than six times Earth's mass, orbits the red dwarf Ross 318 where liquid water could exist — making it one of the most promising nearby targets in the search for habitable planets.
A six-Earth-mass exoplanet found by Italian and Brazilian astronomers using HARPS-N data orbits one of the calmest M-dwarf stars within 30 light-years, making it a prime atmospheric-spectroscopy target for the James Webb Space Telescope.
GJ 887 d orbits one of the quietest red dwarf stars in the solar neighborhood, making it a compelling target for atmospheric analysis by next-generation telescopes.
TOI-5205 b — a Jupiter-sized world orbiting a tiny red dwarf — has an atmosphere poorer in heavy elements than even its own star, with its bulk interior locking away 100 times more metals than reach the observable atmosphere.
Astronomers using Chilean telescopes found at least four planets around GJ 887, with the outermost sitting in the habitable zone — only the second such world known within 10 light-years of Earth.
GJ 887 d orbits one of the calmest red dwarf stars known, making it only the second potentially habitable planet within ten light-years of our solar system.