Learn more about brown dwarfs, the cosmic misfits that blur the line between planet and star.

MIT astronomers used the Imaging X-ray Polarimetry Explorer to identify key features in the innermost region of a white dwarf system called an intermediate polar. This extremely energetic environment ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Inset: an illustration of a white dwarf. Main top: Gaia22ayj seen in X-rays and visible light.

White dwarf stars represent the evolutionary endpoints of medium- and low-mass stars, comprising the dense, electron-degenerate cores left after nuclear fuel exhaustion. In binary systems, ...

Of the seven Earth-sized worlds orbiting the red dwarf star TRAPPIST-1, one planet in particular has attracted the attention ...

A rare quadruple star system that is the first of its kind to be discovered by astronomers could help better understand so-called "failed stars" or brown dwarfs. These celestial bodies get their ...

A white dwarf star has been caught in the middle of consuming a planetary relic, offering fresh clues as to what happens to planetary systems after their star dies. Three billion years ago, a sun-like ...

A first ever detection of a coronal mass ejection from a small red dwarf could have big consequences for life on any nearby ...

Astronomers have spotted two huge white dwarf stars which they say are destined to explode together in a supernova. This is because of how close together the stars are, and it's the first time ...