A new study of ancient zircon crystals found in South Africa and other locations shows that plate tectonics on Earth began about 3.8 billion years ago.
Europa's odd ridges may form similarly to those in Greenland. The ridges occur over subsurface pockets of potentially habitable water in the moon's ice shell.
To celebrate Earth Day 2022, NASA and the Earth Day network are hosting various events designed to promote the beauty of planet Earth and how we can protect it.
Many types of clouds and even clear skies can produce a bumpy flight on an aircraft. But cumulonimbus are the most important clouds for airplanes to avoid.
Undulatus clouds look like wavy rows. They are formed from puffy or thin clouds and reside in the atmosphere high up, at mid-levels or closer to the ground.
A tornado outbreak with up to 45 tornadoes struck the southern United States on Tuesday, April 5, 2022, leaving severe storm damage in S. Carolina and Georgia.