A vibrant display of glowing gases around a dead star is fueled by a mysterious source that scientists can’t explain, in a phenomenon without precedent. As stars move through space, they push away ...

Regular stars collapse and die once they run out of fuel for their nuclear reactions, but the white dwarfs just sit there, hanging out, for eternity. When you purchase through links on our site, we ...

"If confirmed, it could help us better understand both our own galaxy and general relativity as a whole." When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

When stars like our Sun reach the end of their lives, they collapse into ultra-dense objects called white dwarfs—stellar embers roughly the size of Earth but with masses comparable to the Sun. For ...

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The central square image, taken with the MUSE instrument on ESO’s Very Large Telescope, shows shock waves around the dead star RXJ0528+2838. When a star moves through space it can push away nearby ...

Two isolated white dwarfs, each lacking the companion star that conventional astrophysics says should fuel high-energy radiation, are emitting X-rays that no existing model can fully explain.