Brown Dwarf

A Cold Brown Dwarf is Belching Methane Into Space

Brown dwarfs span the line between planets and stars. By definition, a star must be massive enough for hydrogen fusion…

3 weeks ago

Brown Dwarf Pairs Drift Apart in Old Age

The only thing worse than drifting through space for an eternity is doing it alone. Observations with the Hubble Space…

2 months ago

Brrr. JWST Looks at the Coldest Brown Dwarf

What are the atmospheric compositions of cold brown dwarf stars? This is what a recent study published in The Astronomical…

3 months ago

A Solo Brown Dwarf Found With Auroras

Astronomers have used JWST to find a brown dwarf with polar auroras like the Earth, or Jupiter. This is surprising…

4 months ago

JWST Accidentally Found 21 Brown Dwarfs

When you launch humanity's most powerful telescope, you expect results. The JWST has delivered excellent results by detecting ancient galaxies,…

8 months ago

This Brown Dwarf is 2,000 Degrees Hotter Than the Sun

Astronomers have discovered an intense binary star system located about 1,400 light years away. It contains a brown dwarf with…

9 months ago

Your Oven Gets Hotter Than This Star

Astronomers have an ultracool star that only has a surface temperature of 425 degrees centigrade, cooler than the cleaning cycle…

10 months ago

An Astronomical First! A Radiation Belt Seen Outside the Solar System

For the first time, a team of astronomers has imaged the radiation belt of an object from beyond the Solar…

12 months ago

NASA Provides a Timelapse Movie Showing How the Universe Changed Over 12 Years

The Universe is over 13 billion years old, so a 12-year slice of that time might seem uneventful. But a…

2 years ago

Webb Scans a Nearby Brown Dwarf and Finds it has Clouds Made of Sand

An international collaboration has used data from Webb to characterize a brown dwarf, and found clouds of sand in its…

2 years ago