Where Is everybody? The answer to Fermi's famous paradox may be lurking closer than we expected... and it could involve ...

There are indicators of impending catastrophe as well as reasons for hope 55 years after we first celebrated Earth Day, ...

Learn about new evidence that suggests life on Earth may have started with the help of molecules that were delivered by ...

The 100th meridian marks a dividing line between moist climates to the east and arid climates to the west. Climatologists now ...

A giant sequoia located in Sequoia National Park in California, the General Sherman is 52,500 feet in volume and is more than ...

Using data from space telescopes and other instruments, astronomers, cosmologists, and astrophysicists are able to deduce and ...

Visit ancient Mars—a surprisingly temperate planet where snow or rain falls from the sky, and rivers rush down valleys to ...

Federal cuts to the U.S. Geological Survey have prompted fears of losing vital information on earthquake activity and ...

Scientists discovered complex life may have started 1.5 billion years earlier than previously thought thanks to phosphorus.

Researchers found LUCA, our earliest common ancestor, lived 4.2 billion years ago. It had a complex biology, affecting its ...

NASA's Curiosity rover has unearthed compelling evidence of a past carbon cycle on Mars, discovering siderite within Gale ...

How animate life was formed from inanimate matter has always been a mystery, but scientists are closer to finding what may ...