A powerful greenhouse effect can destroy a planet's chances of hosting life, a new study suggests.
A cracking fireball that exploded over Russia last year appears to share an orbit with a huge asteroid discovered in October 2014.
The Soil Moisture Active Passive satellite, planned to launch on Jan. 29, will improve drought tracking in the United States and around the world.
Frigid lakes bombarded by UV radiation and boiling, acidic springs are some of the otherworldly Earth environments where scientists plan to hunt for clues to life on Mars.
The hot, wrinkled lava from Iceland's Bardarbunga volcano shines bright in two new satellite images of the blazing eruption.
The catastrophic collapse of the massive West Antarctic Ice Sheet is underway, researchers said today.
The deadly tornado outbreak across the southeastern United States was tracked from space, as seen in this satellite video.
A battered diamond that survived a trip from "hell" confirms a long-held theory: Earth's mantle holds an ocean's worth of water.
The oceans became a lethal sulfuric-acid stew after the huge asteroid impact that wiped out the dinosaurs some 65 million years ago, a new study suggests.
More than 20,000 scientists will descend on San Francisco this week for the annual meeting of the American Geophysical Union.
From hill laid bare by winds to flooded coastlines, the massive swath of destruction across Tacloban from Super Typhoon Haiyan is visible even from space.
A new analysis of a Martian meteorite claims some of the planet's missing carbon dioxide atmosphere disappeared into Mars itself.
An amazing new view of Saturn, created by amateur image processer Gordan Ugarkovic, shows the planet and its rings in all their glory.
Periodic wobbles in Earth's core change the length of a day every 5.9 years, according to a study published today (July 10) in the journal Nature.