Satellite imagery reveals that Mount Etna has gotten 100 feet taller in the past six months.
A seismic image of central Louisiana reveals gigantic megaripple marks dating to the end of the dinosaur age.
About 100 million years ago, a gigantic meteorite collided with Australia, creating a 3-mile-wide impact crater.
Excluding Mercury, this newly discovered asteroid has the smallest known aphelion distance in our entire solar system.
Earth's scorching core is not a loner — it has been caught mingling with other, underworldly layers.
Wildfires burning large swaths of Russia are generating so much smoke, they're visible from space, new images from NASA's Earth Observatory reveal.
The Apollo 11 mission to the moon was one of humanity's most incredible feats, but it almost didn't happen.
Astronomers discovered a car-size asteroid hours before it slammed into Earth and burned up in the atmosphere this past weekend, news sources report.
Summer is the season for tourists, and that includes a cosmic traveler — one that's three times the length of a football field — that's expected to visit Earth's neighborhood later this week.
This fall, Earth has about a 1-in-7,000 chance of getting an uninvited extraterrestrial visitor: asteroid 2006 QV89.