Space

In a first, researchers discovered oxygen atoms on the dayside and nightside of Venus' atmosphere.

A Milky Way doppleganger discovered in the early universe suggests some key physical ingredient is missing from cosmological models.

Dark matter may come in multiple particles and weights, similar to the ordinary elements on the periodic table, a new theory suggests.

A white dwarf spotted by the Gaia telescope was predicted to smash into our solar system in 29,000 years. But we'll be safe after all.

Several exoplanets at the edge of our galaxy could have formed continents — and advanced life — 5 billion years earlier than Earth, new research suggests.

The universe's early galaxies are way brighter than they should be. The James Webb Space Telescope's discovery of brightly glowing gas around 90% of primordial galaxies may explain why.

Gorgeous photos show the stunning auroras and sky phenomena caused by a powerful geomagnetic storm that slammed into Earth Nov. 5.

Additional images from NASA's Lucy mission reveal that the "moon" orbiting asteroid Dinkinesh is actually a contact binary, made of two smaller moons touching.

The newly identified quasar, observed 13.7 billion light-years away by the James Webb Space Telescope and Chandra X-ray Observatory, could be an example of a heavy black hole "seed" in the early universe.

The massive volcanic comet 12P/Pons-Brooks, which grows giant horns when it erupts, has exploded for a third time in five months as it continues to race toward the sun.