Even with the countdown fully on, you can still score genuinely great gifts from the retailer. Yes, they carry phones, but ...

Scientists explain how rare bright blue cosmic flashes form when black holes tear apart massive stars, based on new observations of the event AT 2024wpp and similar fast blue optical transients ...

A distant stellar explosion has offered astronomers a rare natural experiment, one that turns gravity into a powerful optical ...

A new image of M87 shows and confirms for the first time the feeding ring and jet of its supermassive black hole.

A supernova from the early universe looks unexpectedly familiar, challenging ideas about how the first massive stars lived ...

Colorado is known for its scenic beauty, but some of its best views are only visible after the sun sets. Here are 5 of the ...

Many experts consider fusion the holy grail of energy that could deliver enormous power in the distant future. President Trump's media company is betting it is imminent.

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