A puzzling cosmic blast detected in both light and gravitational waves may hint at a previously unseen type of explosion, challenging astronomers to rethink how neutron stars are born and collide.

Meteors from the Ursids appear near the Little Dipper, which is part of the constellation Ursa Minor. Only skywatchers in the Northern Hemisphere will have a chance of seeing this shower. The moon ...

On Dec. 20, 1904, the Mount Wilson Observatory was founded. This astronomical observatory was the brainchild of the solar ...

After a proposal at the Griffith Observatory in Los Angeles, Heather and George planned a travel-themed wedding at the TWA Hotel in New York. Learn how they won their wedding budget and their ...

If you're tired of mild metro Phoenix weather, it's time for a road trip. From red rocks to forests, here are four places to see snow in Arizona.

From the Freedom Tower to the Sears Tower, here are the tallest buildings in all 50 states and DC, ranked by height.

The mysterious space rock suggested to be a hostile alien spaceship was due to make its closest approach to Earth today (Dec ...

U.S. Soldiers assigned to U.S. Army Southern European Task Force, Africa’s (SETAF-AF) 517th Geospatial Planning Cell ...

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. On ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Katy ...

Today is one astronomers, stargazers and alien conspiracy theorists have been waiting for: interstellar comet 3I/ATLAS is as ...

The earlier two were ‘Oumuamua, discovered in 2017, and 2I/Borisov, found in 2019. For scientists, 3I/ATLAS is important because it gives a rare chance to study material from another star system ...