Cosmology

Neutrinos from deep space are opening up a new kind of astronomy

Astronomers are discovering distant planets that orbit two-star systems, uncovering bizarre and wondrous worlds unlike anything in our solar system

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

Seeing Saturn through a telescope can leave a ringing in one's ears

With a density nearly identical to that of our planet, the exoplanet Kepler 78 b is just 20 percent wider and about 80 percent more massive than Earth

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

Physicists have completed a new round of searches for the answer to why matter dominates antimatter. But the radioactive decay that would solve the puzzle evades them

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