Brown dwarfs blur the lines between stars and planets. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Brown dwarfs are curious celestial ...

The star is a white dwarf — the shriveled husk of a sun-like star that burned off most of its fuel before collapsing. For stars with cores made mostly of metallic oxygen and carbon, the cooling ...

Stealing gas from their siblings could leave stars with a motley crew of planets – including ones with backwards orbits. Our solar system is thought to have formed from a collapsing cloud of gas ...

Light that escapes collapsing stars and dust clouds may sport an unusually blue hue. Light emitted within these gravitationally unstable objects can get compressed and thus become bluer ...

An animation shows how a series of supernovas beginning 14 million years ago created the Local Bubble, a cavity of very thin, hot gas in our sun's corner of the Milky Way.