NASA’s Curiosity rover captured stunning images of Martian twilight clouds, revealing iridescent dry ice formations on Mars.

In Manaus, a sprawling city of more than 2 million, the depth of the Rio Negro, a major branch of the Amazon River, reached ...

Fern frost, or flowers, form on frigid mornings. The air is saturated with water vapor, and when these molecules come into ...

NASA's Rover found ripples in Martian rock that resemble the wave patterns on a sandy lake bed on Earth. The ripples could only have come from liquid water.

The goal for Climate Impulse is to take off unassisted, fly some 40,000 kilometers (about 25,000 miles) around Earth along ...

Curiosity, a set of NASA 's robotic "eyes" on the Red Planet, recorded 16 minutes of so-called noctilucent clouds flying ...

One photo transformed a simple remodel into an extensive reimagining of an elegant One Queensridge Place 16th-floor condo.

Live updates from Tuesday’s SpaceX Starlink 10-12 mission that launched a Falcon 9 rocket from Cape Canaveral with a booster ...

Before the day breaks on a winter morning at the Pong Lake wetland in northern India, muffled honks of geese are heard in the distance. The air is heavy with water vapor and headlights of motorbikes ...

Revolutionary technique allows astronomers to capture incredibly high-resolution images of distant galaxies and supermassive black holes.

The river appeared to steam with the rising sun’s light; however, it was not steam but condensed water vapor that formed ... winter in the region. I took photos during the hike and have included ...