A 2017 astronaut photo shows the islands of Dek and Daga lurking in the murky, algae-infested waters of Ethiopia's Lake Tana.

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Both hail ...

A pair of once-in-a-lifetime comets are rocketing through our skies right now, and it's a rare treat because they won't be ...

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

Keep an eye on the night sky in October—you might catch a falling star! The Orionid meteor shower reaches its peak on the ...

A rare, green-glowing comet will make its closest approach to Earth next week — and it won’t return for more than a thousand ...

The comet will continue to brighten after that, likely reaching its brightest around October 31 or November 1, at which point ...

Late October offers a meteor shower generated by Haley's Comet plus a once in a lifetime comet that streaks by Earth every ...

Two comets, C/2025 A4 (Lemmon) and C/2025 R2 (SWAN), are about to reach their closest approach to Earth and you can watch the ...

Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Among the alterations to the Green Lantern canon made by Earth One, Hal’s fellow Green Lantern ...

China's rare earth export curbs threaten the clean energy supply chain, but global exposure helps ETFs like PBW, FRNW, and ...