The brightest fast radio burst ever detected could help reveal what celestial source causes the mysterious signals and if ...

Astronomers captured a glimpse of the innermost layers of a massive star before it exploded in a supernova, changing their ...

The black moon is occurring this weekend, but it won’t be visible from Earth. Here’s everything you need to know about the ...

Betelgeuse, one of the brightest stars in the night sky, may not be alone. And its potential companion may be responsible for one of the star’s enduring mysteries.

according to a directive dated July 31 and obtained by CNN. If another country were to achieve this feat first, it could declare a “keep-out zone” that would effectively hold the US back from its goal ...

It creates a crescent — as if the moon took a bite out of the sun. Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific ...

Avi Loeb, the chair of Harvard's astronomy department, told CNN on Thursday that the 31/ATLAS interstellar object detected by the Deep Random Survey remote telescope in Chile could have an alien ...