You'd expect sunglint from an ocean or other body of water. But the camera caught some glints over land as well. A new NASA video explains how scientists solved the mystery.
Fossils found in Australia - in ancient hot spring deposits - have pushed back the earliest known evidence for land-based microbial life to 3.48 billion years.
Noctilucent clouds - aka night-shining clouds - can be seen at high latitudes in summer, typically beginning for northern latitudes in late May. French photographer Adrien Mauduit in Denmark assembled his best 2016 photos into a wondrous video.
Twitter has been blowing up with posts on cats' attraction to taped squares on the ground. An animal behavior expert explains what draws Fluffy to the #CatSquare.
Antarctica has 12 million penguins and 5 penguin species, according to a new report released today. But at least 2 penguin species have recently and significantly declined.
The European Space Agency is monitoring the progress of the crack in Antarctica's Larsen-C ice shelf. The crack is eventually expected to produce a massive iceberg.