Not quite planets and not quite stars, brown dwarfs are cosmic in-betweeners. Learning about their atmospheres could help us understand giant planets around other stars. For the first time, scientists ...

Astronomers using W. M. Keck Observatory and Subaru Telescope on the Big Island’s Maunakea discovered a massive planet and a brown dwarf orbiting distant stars — two rare companions that deepen our ...

Astronomers using NASA’s James Webb Space Telescope to study brown dwarfs were surprised to find glowing methane resembling aurora lights on a cold brown dwarf. American Museum of Natural History ...

Being slight oddities, brown dwarfs occupy a strange but useful niche in astronomy. Unlike exoplanets, which are often ...

Infrared image of the center of the Orion Nebula taken with the NIRCam instrument on NASA's James Webb Space Telescope. The insets show expanded images of two faint proplyds from the Hubble Space ...

NASA's James Webb Space Telescope has made a surprising observation, detecting aurorae on a cold, lonely brown dwarf known as W1935. The "failed star" or brown dwarf, larger than Jupiter but smaller ...

NASA's James Webb Space Telescope has achieved a huge milestone with the discovery of a tiny celestial object! The powerful telescope detected the smallest free-floating brown dwarf ever identified.

NASA's Webb telescope spotted what is likely the smallest brown dwarf ever observed. Brown dwarfs are some of the most unusual objects in the universe. They aren't a star or a planet. In theory, such ...

This mosaic shows the sky as imaged by NASA's Wide-field Infrared Survey Explorer, aka WISE. Using images from a NASA telescope, three amateur scientists discovered a star-like object sprinting ...