earthsky

Mystery of fastest white dwarfs solved?

All of our Milky Way’s stars orbit our galaxy’s center. And some stars move really fast! On August 31, 2025, astronomers in Israel and Germany said they’ve figured out why some of the fastest stars in ...
Morning Overview on MSN

NASA’s SPHEREx measured 37 brown dwarfs, from about 4,000°F down to minus 10°F

Thirty-seven brown dwarfs, ranging from roughly 4,000 degrees Fahrenheit (2,200 degrees Celsius) down to minus 10 degrees ...

The Limit of White Dwarfs Was Not an Absolute Value

Hello, this is Mu-san.Today, I am talking about the limit of white dwarfs.The 1.4 solar mass upper limitWhen a star uses up ...
NASA Jet Propulsion Laboratory (JPL)

NASA’s SPHEREx Telescope Sees Menagerie of Brown Dwarfs

NASA’s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) space telescope ...