Neutron stars explained through stellar remnants and collapsed stars, revealing extreme density, gravity, magnetism, and ...

Describing matter under extreme conditions, such as those found inside neutron stars, remains an unsolved problem. The ...

Scientists from several institutions, including the University of Chicago, discovered a lemon-shaped planet with an ...

A massive star may have burst, leaving behind two dense, dead cores, which then collided and caused another explosion ...

A distant neutron star unexpectedly reawakened, unleashing a powerful X-ray surge that may reveal how the universe’s most ...

Astrophysicists are turning the universe’s dying stars into laboratories for one of physics’ most elusive ideas, the axion.

A double blast of dying stars may be the first observed case of a long-hypothesized, never proven “superkilonova.” Although ...

Columbia Professor Brian Metzger helped other astronomers interpret their observations of the unexpected stellar event.

A puzzling cosmic blast detected in both light and gravitational waves may hint at a previously unseen type of explosion, ...

When the most massive stars reach the ends of their lives, they blow up in spectacular supernova explosions, which seed the ...

Astronomers may have discovered the first example of an explosive cosmic event called a "superkilonova," in the form of a gravitational wave signal detected on Aug. 18, 2025.