The finding suggests phosphine—a potential biosignature—shouldn’t be viewed as evidence of alien life until natural, non-biological sources are ruled out.
A young rogue planet about 620 light-years away from Earth has experienced a record-breaking "growth spurt," hoovering up some six billion tons of gas and dust each second over a couple of months.
Dark dwarfs are hypothetical dark matter-powered objects that formed from the cooling of brown dwarfs.
A team using NASA’s James Webb Space Telescope has identified the new record-holder: a tiny, free-floating brown dwarf with only three to four times the mass of Jupiter.
An object orbiting a star 1,400 light-years away is seriously confronting our notions of what's possible in the Universe.
The belt was discovered around a brown dwarf known as LSR J1835+3259 and is 10 million times more intense than Jupiter's.
Astronomers have discovered a pulsar that comes with its own magnifying glass — courtesy of its brown dwarf companion that’s being torn to shreds.
Our galaxy could have 100 billion brown dwarfs or more according to a recent survey of dense star clusters
