As the interstellar comet 3I/ATLAS races toward its closest pass by our planet, astronomers are fixated on a peculiar feature ...

The Moon is usually a picture of stillness, its grey face changing only with the phases of light. Yet for a fraction of a ...

In an unprecedented celestial event, NASA's Hubble Space Telescope (HST) captured the dramatic aftermath of colliding space ...

Are we really talking about birding by bike? Yes. It sounds ridiculous, but it's surprising how well they naturally they fit together.

Interstellar comet 3I/ATLAS makes its closest approach to Earth on Dec. 19. Here's how you can track its progress both during ...

Scientists atop Mauna Kea on the Island of Hawai’i and across the Hawaiian chain are turning their telescopes skyward Friday ...

I've taken incredible photos of this interstellar comet for more than a month using two tiny iPad-connected scopes in my ...

Interstellar comet 3I/ATLAS makes its closest Earth flyby tonight at 1 a.m. EST, NASA confirms. Learn when and how to watch ...

Interstellar comet 3I/ATLAS will fly by our planet at a safe distance of 1.8 astronomical units (roughly 167 million miles or ...

David Rankin of the Catalina Sky Survey in Arizona spends nights scanning the solar system for potentially catastrophic space ...

3I/ATLAS, the third-ever interstellar object to bump into the solar system since 1I/Oumuamua (2017) and 2I/Borisov (2019), ...

Comet 3I/ATLAS will make its closest approach to Earth at 1 a.m. EST (0600 GMT) on Dec. 19. At that time, it will be about ...