Astrophysics

A gigantic star in the Whirlpool galaxy has vanished, solving a supernova mystery

An underground detector in a South Dakota mine has failed to find dark matter particles, casting doubt on earlier claims

The recently proposed idea of “black hole firewalls” has physicists questioning some of their most cherished ideas

The influential Large Underground Xenon experiment, a dark matter detector based in South Dakota, is set to release its first results

The latest observations of exploding stars could call into question the cosmological constant explanation of dark energy

"Hair" is a term among physicists as a stand-in for any other measure needed to describe a black hole other than its mass, its angular momentum and its electric charge

Observations show two planets circling their star's equator at a 45-degree angle

From the agencies to Antarctica, work picked up anew

Hubble observations of the smallest galaxies known help explain why so few of them exist

The first discovery of a rocky, watery object beyond our solar system shows how planets might get their oceans

A computer simulation of the universe shows that it may be filled with “defects in spacetime”

Interactions of Higgs bosons and anti-Higgs in the early universe may also have caused the observed asymmetry between matter and antimatter