Earth

A new study demonstrates how salty water and gases transfer from the atmosphere into the Earth's interior. The research provides new insight into the evolution of our planet. Studying the physical processes of Earth can help astrobiologists understand what makes a planet habitable.

New research shows that oceanic crust can make its way right down to the lower mantle (deeper than 660km) and then be transported back to the surface.

New research shows that oceanic crust can make its way right down to the lower mantle (deeper than 660km) and then be transported back to the surface.

Now on its way to Jupiter, NASA's Juno spacecraft has taken time to capture images of Earth and the Moon.

Prior to the 'Great Oxidation Event', when Earth's atmosphere became rich in oxygen, reserves of the gas may have been stored in the oceans. The evidence of 'oxygen oases' in the oceans can be seen in tiny aerobic organisms that evolved to survive on extremely

Using measurements from space, scientists have confirmed that, although the surface of the Earth is constantly changing, the planet is not expanding.

Prior to the 'Great Oxidation Event', when Earth's atmosphere became rich in oxygen, reserves of the gas may have been stored in the oceans. The evidence of 'oxygen oases' in the oceans can be seen in tiny aerobic organisms that evolved to survive on extremely

Using measurements from space, scientists have confirmed that, although the surface of the Earth is constantly changing, the planet is not expanding.

New research shows how the Earth's tides have changed dramatically over thousands of years - and may change again in the future.

In an exclusive podcast for astrobio.net, Dr. David Grinspoon, astrobiology curator at the Denver Museum of Nature & Science, discusses our violent Earth. He explains why earthquakes, severe weather, and other aspects of the dynamic environment may be necessary for life to exist.