Many mysteries in the universe still confound physicists and astronomers. The idea of white holes, which are hypothetical equivalents of black holes, is one of the most puzzling notions in ...

The dense stellar remnant would, if confirmed, be the closest known object to any black hole, according to preliminary research Sara Hashemi Daily Correspondent An artist’s concept of a white ...

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 black holes suck in light, white holes gush light outward. Objects cannot avoid being pulled to the center of a black hole, but would not be able to reach the center of a white hole.

"This would be the closest thing we know of around any black hole," Megan Masterson, a physicist at MIT who co-led the research, said in a statement. "This tells us that objects like white dwarfs ...

The white dwarf could be shedding matter and triggering the pulses observed by the researchers. As it circles closer and closer to the black hole, they hypothesize, those pulses speed up.