We know more about the surface of the moon than about Earth’s ocean floor. But analysis of core samples from the deep seabed has given us insights into climate change, Earth’s history, and the key conditions for life.
Links to stories and images of the 7.5-magnitude earthquake and subsequent tsunami in Indonesia on Friday. By Sunday morning, the death toll had gone over 800, with thousands waiting to be rescued.
Smoky air makes it harder for thunderclouds to grow. But pollution - if it's not too heavy - energizes their growth, according to a new study based on satellite data.
This candy-pink lagoon in Spain is providing valuable clues about how extremophile microorganisms might exist on Mars despite the planet's harsh conditions.
Dust storms, also known as haboobs, occur when winds from dying thunderstorms push downward and pick up sand and dirt across desert areas. Amazing pics and video from last summer's haboobs in Arizona, here.
Sea levels have been rising since the end of the last Ice Age. But, as climate warms, the rate of the rise is accelerating. A new ESA video explains how we know.
As Earth rotates, its spin axis -- an imaginary line that passes through the North and South Poles -- drifts and wobbles. Scientists now have, for the 1st time, identified 3 reasons why.
Contrary to popular thought, birds wintering in the tropics survive the winter better than birds wintering in the U.S. That's despite the fact that tropical wintering birds migrate 3 to 4 times farther.