In a remarkable cosmic event observed on November 2, 2025, scientists had the rare opportunity to witness a dead star annihilating a planet in real time. This observation builds upon previous ...

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 ...

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A 3-billion-year-old white dwarf, the core of a dead star, consumed an exoplanet from its former planetary system. Credit: NASA / ESA / Joseph Olmsted illustration A dead star core about 145 ...

"The surprise that a supposedly quiet, discless system could drive such a spectacular nebula was one of those rare 'wow' moments." When you purchase through links on our site, we may earn an affiliate ...

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.