Brown dwarfs blur the lines between stars and planets. Brown dwarfs are curious celestial bodies that appear to straddle the mass divide between stars and planets. Often referred to as "failed ...

The fastest-spinning white dwarf ever discovered is a shrinking cosmic vampire feasting on a stellar companion. A feeding ...

Meet the brown dwarf: bigger than a planet, and smaller than a star. A category of its own, it’s one of the strangest objects in the universe. Brown dwarfs typically are defined to have masses ...

These cool, dim stars are known as brown dwarfs or 'failed stars.' But even the mass of a brown dwarf isn't enough to overcome the Coulomb barrier and start up stellar fusion. Fusion takes so much ...

"Brown dwarfs, planets or stars" JuMBOs play charades with astronomers As explained above, the big mystery about JuMBOs is they seem to defy the formation avenues that lead to both stars and planets .

Kevin added that they designed the crystal structure of three of the strongest materials, diamond, graphene, and titanium.

These cool, dim stars are known as brown dwarfs or 'failed stars.' Credit: NASA/JPL-Caltech But even the mass of a brown dwarf isn't enough to overcome the Coulomb barrier and start up stellar fusion.

It consists of two stars that orbit each other: one is a white dwarf star — the hot, dense stellar core that remains after a low- or intermediate-mass star has exhausted its fuel, nearing the end of ...

Jan. 9, 2024 — Astronomers have found a brown dwarf (an object more massive than Jupiter but smaller than a star) with infrared emission from methane, likely due to energy in its upper atmosphere.