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

A newly discovered comet is about to make its closest pass to Earth on Tuesday night. It should be visible over the Bay Area ...

Similar to the green comet that stunned local stargazers back in 2023, Lemmon's shamrock-colored hue comes from the unique ...

Several bats glow bright green under ultraviolet light. The glow could reveal clues about evolution in these mysterious night ...

The silver-grey rock contains a hidden story. Somewhere in the early summer of 2025, China’s Chang’e6 capsule landed on the ...

As Anne Cubberly's Hartford-based crew bring Muchos Colores and Mother Earth to New Haven's "No Kings" protest.

A rare green Halloween comet will be visible in the night sky over the next few weeks before it vanishes for 1,300 years.

Comets Lemmon and SWAN are soaring past Earth in a rare cosmic treat. Here's best viewing times, tips and more in ...

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

The Beye Elementary School Green Team created an award-winning documentary about reducing single-use plastics in their ...

The environmental movement is doing some soul-searching. It is floundering in the age of President Donald Trump, mired in a ...