Red-and-green-tinted clouds drift through the Martian sky in a new set of images captured by NASA's Curiosity rover using its ...

The Curiosity rover on Mars is looking up to study a cloudy mystery.The Latest Tech News, Delivered to Your Inbox ...

There may not be as many reports of drones in the sky lately, but there are apparently still some strange aerial sights to see. Woodrow resident Kristin Kenavan was letting her dog out into the ...

These are noctilucent (night-shining) clouds. “Even though the sun has ... making them seem to almost glow in the sky,” wrote Alex Innanen, a York University atmospheric scientist, in the ...

The hike to Kem Baha in Gunung Stong State Park offers a stunning sunrise over a sea of clouds, set amid Malaysia’s rich ...

Nevadans may have seen an unusual white streak in the sky. Not quite a cloud and not quite a comet, the sight left people ...

As night falls on the Atacama desert in northern Chile four giant telescopes turn their gaze towards the star-strewn heavens.

The area near clouds is often classified as ‘clear sky’, but a new study demonstrates the potential biases of misclassifying ...

Light pollution—the needless shining of bright lights into the night sky—has robbed whole generations ... 911 to express alarm about strange clouds hovering overhead; they were seeing the ...

Some New Jersey residents were treated to an unusual sight in the sky Tuesday night as a SpaceX rocket launch lit up the ...

I pick out North America’s celestial highlights for the week ahead (which also applies to northern hemisphere mid-northern ...

The beautiful planetary parade continues through the end of the month, with special guest Mercury joining the pack soon.