Earth's core is 'leaking' gold, study finds
Planet Earth
There is a huge boulder on a cliff in Tonga. Now we know how it got there.
Forecasters say Tropical Storm Alvin will form within the next 48 hours, kicking off this year's Pacific hurricane season.
Four volcanoes at secret Soviet military base linked to climate-changing eruption 200 years ago – Earth from Space
Study shows Africa is being torn apart by 'super-eruption' of hot rock from deep within the Earth
The US has 90,000 tons of nuclear waste. How and where is it stored?
'Above Normal' Conditions Could Bring Up to 10 Hurricanes to U.S. This Summer
World's Largest Iceberg, A23a, Breaks Up into Thousands of Pieces Near Penguin Refuge – Earth from Space
150,000-year history of Earth's magnetic field reveals secrets of the climate that existed when the first humans spread out of Africa
Provocative study suggests super-deep Yosemite canyon may have been partially carved by ghost volcano and river
Only 0.001% of the ocean depths have ever been explored by humans—an area equal to the size of Rhode Island.
See the reconstructed home of the 'polar dinosaurs' that thrived in Antarctica 120 million years ago.
What's hidden beneath the ice of Antarctica?
Plants: Facts about our oxygen suppliers
Satellite study reveals fastest sinking city in US
