A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien astronomers could also be scanning Earth.

We have developed a state-of-the-art atmospheric climate-biogeochemical model for terrestrial planets (1D-TERRA) with photochemistry and unique air-shower physics. We are international leaders in ...

These rocky bits eventually coalesced to form the terrestrial planets. However, at a distance of around 4 ... of the gas and ice giants in the outer solar system. This first-order model of planetary ...

Our research interests have been primarily in understanding the physical processes that control the evolution of terrestrial planets (Earth, Moon, Mars, ...). Modern space exploration has provided ...

A new climate modeling study presents a new scenario of how climate and life on our planet would change in response to a potential future strike of a medium-sized (~500 m) asteroid.

The rocky planets Mercury, Venus, Earth, and Mars were born at the same time from the same material, yet they have lived radically different lives. What immense forces are at play? Show more In ...