#red dwarfs

Content tagged "red dwarfs".

2 items (2 articles, 0 stories)

Articles

A Galaxy's Weight Isn't Set by the Stars You Can See

August 25, 2026

We weigh galaxies by their light, but light comes almost entirely from a handful of massive stars. More than 70% of all stars, by number, are dim and smaller than the Sun. JWST observations now suggest early-universe galaxies could be 3 to 4 times heavier than we thought. SORABUMI explains.

Stars and Galaxies #galaxies#red dwarfs#early universe#JWST#stellar mass function

A White Dwarf Hid in Its Neighbor's Glare for 27 Years

July 28, 2026

About 25 light-years from Earth, the Sun's ninth-closest white dwarf -- the burnt-out core of a dead star -- went unnoticed for 27 years, drowned in the glare of a red dwarf next door. Hubble's ultraviolet vision finally exposed four hidden dead stars within 65 light-years of home. SORABUMI explains how.

Stars and Galaxies #white dwarfs#red dwarfs#Hubble Space Telescope