The comet is one of only three of its kind recorded in history. But others think there could be more to this celestial object ...

Armillary rings emerged in the 16th and 17th centuries during the birth of the scientific revolution and rise of astronomy ...

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy clusters, and dark matter.

A full moon is slated for Sept. 7, but there are other celestial events occurring this month. More on viewing Saturn at its ...

Set to peak on Oct. 8, 2025, the Draconid meteor shower will light up autumn skies with up to 10 shooting stars per hour.

For the past decade, gravitational wave astronomy has opened our eyes to amazing cosmic phenomena thanks to LIGO, the Laser Interferometer Gravitational-wave Observatory. Bob McDonald celebrates LIGO ...

There's no doubt that SpaceX's Starlink internet service has connected the world like never before — but at what cost? Astronomers have long voiced concerns about Starlink's satellite constellation ...

"I think it's natural to take a break and wonder whether we are fundamentally thinking about this in the wrong way." Dark matter could be made from tiny black holes formed when so-called "dark baryons ...