White dwarfs may still host habitable planets. Conditions like tidal heating and migration shape their potential for life. The Sun will eventually die. This will occur when it exhausts the hydrogen ...

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New research published this week confirms Stephen Hawking's 1971 theory that the surface area of black holes never shrinks, ...

A swarm of galaxies called the Bullet Cluster is the biggest, best natural laboratory for studying dark matter that ...

The dwarf planet Pluto and its five known natural satellites (Charon, Styx, Nix, Kerberos, and Hydra) may be frigid, but ...

Astronomers detected in unprecedented detail a collision between two black holes. Their observations confirm predictions made ...

For Hannaford, the crossover between space and extreme medicine is natural. “It’s all austere environments,” he says. “The ...

Black holes are a key prediction of general relativity, our leading theory for describing gravity. Astrophysical black holes ...

"GW250114 is the loudest gravitational wave event we have detected to date; it was like a whisper becoming a shout." ...

The merger of two black holes is a momentous event, revealing the wildest and most extreme configurations of space, time and ...

Ten years ago, astronomers made an epic discovery with the Laser Interferometer Gravitational-Wave Observatory. Cosmology ...

The images of Comet 3I/ATLAS were captured by the Gemini South telescope at Cerro Pachón in Chile on Aug. 27 as the icy ...