Per Space, a white hole observed by a nearby spacecraft might look like a black hole for the most part, including evidence of rotation and a ring of gasses and dust around its event horizon.

Astronomers theorize that a low-mass white dwarf, a compact core of a dead star about as large as Earth, could be the culprit. A cosmic mystery surrounding a black hole some 270 million light ...

While our understanding of the universe remains incomplete, leaving room for countless unknown phenomena, two intriguing concepts that pique scientific curiosity are white holes and wormholes.

The supermassive black hole at the center of the Milky Way, called Sagittarius A*, is about four times more massive than this one. White dwarfs are among the most compact objects in the cosmos ...