Planet Earth

If Atlantic Ocean currents collapse due to melting ice sheets, researchers predict there will be huge shifts in tropical monsoon systems — and the effects could be irreversible for at least 100 years.

Earth from space A pair of 2015 astronaut photos taken just minutes apart shows the eye of tropical cyclone Bansi illuminated by two lightning strikes as the storm raged in the Indian Ocean off the coast of Madagascar.

Measuring the pace of evolution is tricky, but some species can evolve as quickly as a few generations.

A new study builds on previous research into the underwater volcano's effects on the climate.

Antarctica is covered by a miles-thick ice sheet, but was that always the case? And when was the coldest continent ice-free?

It's the first time Earth's geologic record — information found inside rocks — has been used to create an animation of this kind.

Every winter and spring, great white sharks that usually dwell off the coast of California gather in a remote section of ocean the size of Colorado — and scientists are slowly piecing together why.

A helium reservoir with the highest concentrations ever seen could hold enough of the gas to address critical shortages in the U.S. affecting tech, medicine and space exploration.

For the first time, researchers have linked the amount of silver being buried in marine sediments to human-made climate change.

Earth from space A 2012 satellite photo captured an unusual "double rainbow" glory appearing next to an unconnected chain of rare vortices in the clouds above Mexico's Guadalupe Island.