For over forty years, astronomers have been baffled by X-rays from the white dwarf at the center of the Helix Nebula. A white ...

"Purple bacteria can thrive under a wide range ... Up to 75 percent of all stars in the galaxy are red dwarf stars, which leads scientists to speculate whether life can emerge on a red dwarf ...

"When I first spotted this system with a very high total mass on our galactic doorstep, I was immediately excited." A pair of rare, compact white dwarf stars that are set to collide in about 23 ...

Using the Hubble Space Telescope, astronomers have, for the first time, directly detected the merger of star clusters at the ...