Planet Earth

Climate change is raising sea levels, and many low-lying islands are at risk. But determining which communities will be first to leave is impossible to answer.

Mountains form in a variety of ways, some of which geologists are now just starting to understand.

A newly-formed island off the coast of Iwo Jima in the Pacific Ocean was spotted in satellite images after it emerged during an underwater volcanic eruption at the end of October.

Climate change and rising sea levels could cause similar floods along the West Coast each year without El Niño by the 2030s, NASA warns.

A Hebrew note found in the Vatican Library describes a 1446 earthquake swarm previously unknown to seismologists.

Scientists participating in one of the longest-running active scientific experiments have discovered a surprising hybrid plant hiding among seeds buried at a secret location on a university campus since 1829.

A volcanic eruption off the Japanese island of Iwo Jima on Oct. 30 led to the formation of a new 330-foot-wide island just north of the explosion site.

Three of North Greenland's eight enormous ice shelves have already undergone complete collapse.

Plants draw on a suite of pigments to produce energy from sunlight, and in the fall, some become more obvious than others.

The sky's blueness isn't from reflecting the water. Instead, its color has to do with scattered light.