Comet Lemon will be in the heart of the constellation Boötes, the Herdsman, as it makes its closest approach to Earth on Oct.

Scientists have spotted the first clear sign of water from an interstellar comet, 3I/ATLAS, offering new clues to the ...

"As far as I know, there are no protocols for responding to the discovery of functioning alien devices near Earth." ...

This newly discovered comet could soon glow bright enough for the naked eye as it sweeps through October's morning and ...

Interstellar comet 3I/ATLAS is just the third such object ever confirmed to have entered our solar system. It has attracted ...

Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed 3I/ATLAS ...

Need a refresher about 3I/ATLAS? Here's everything to know about the interstellar object, including when the latest ...

The images offer the closest view yet of comet 3I/ATLAS, famous for being only the third known interstellar object to pass ...

The images taken by two Mars orbiters show a bright, fuzzy white dot of the comet, also known as 3I/ATLAS, appearing to move ...

Comets SWAN and Lemmon will both swing by Earth and appear bright in the sky near the end of October. Here’s how to see them.

Though it won't become any brighter, Comet SWAN will reach its closest point to Earth on Oct. 20, coming within 24 million ...

A rare opportunity to see not one but two comets awaits skygazers this October. We show where and how to view them.