Dark matter is more than five times as abundant as all the visible matter in the universe. So why can't we see any of it?

New observations from NASA's Chandra X-ray Observatory and other telescopes have captured a rare cosmic event: Two galaxy ...

The telescopes at Lick may be vintage, but scientists at the observatory continue to discover new planets and examine ...

The Big Bang is often described as the explosive birth of the universe—a singular moment when space, time and matter sprang ...

Scientists could turn to black holes for cheaper, natural alternatives to expensive facilities searching for dark matter.

The National Science Foundation, which was supposed to provide much of the funding for TMT, opts to fund the Giant Magellan ...

A sweeping cosmic census from the James Webb Space Telescope has unveiled nearly 1,700 galaxy groups—marking the deepest and ...

NASA is advancing plans to construct a radio telescope on the Moon's far side – a location uniquely shielded from the ...

Scientists have long puzzled over a discrepancy in how fast the universe is expanding, but new, sharper data from the James ...

New data show a 50% chance the Milky Way won't collide with Andromeda. A merger with the Large Magellanic Cloud is far more ...

Scientists are worried about rising radio interference from space. Large satellite networks, like SpaceX's Starlink, are ...

Team led by UChicago scientist Wendy Freedman using James Webb Space Telescope finds no evidence of tension in Hubble ...