Rotation in planetary atmospheres plays an important role in regulating atmospheric and oceanic heat flow, cloud formation and precipitation.
A terrestrial planet in an orbit far outside of the standard habitable zone could maintain surface liquid water as a result of H2-H2 collision-induced absorption by a thick H2 atmosphere.
The Baruch S. Blumberg NASA/Library of Congress Astrobiology Program establishes a focus in the nation's capital for the exploration of issues surrounding life's future in the universe, for humans and other species, on Earth and beyond.
Genomics and Cell Biology
Tardigrades, nearly microscopic animals that can survive the harshest of environments, including outer space, hold the record for the animal that has the most foreign DNA
Life is quirky. Although the molecules that make up all living things obey physical and chemical laws, they do so with a puzzling twist.
Habitable Zones & Global Climate
The most Earth-like planet could have been made uninhabitable by vast quantities of radiation, new research led by the University of Warwick research has found.
Earth has a unique surface character among Solar System worlds. Not only does it harbor liquid water, but also large continents.
M-dwarf stars are generally considered favourable for rocky planet detection. However, such planets may be subject to extreme conditions due to possible high stellar activity.
The presence of numerous complex organic molecules defined as those containing six or more atoms) around protostars shows that star formation is accompanied by an increase of molecular complexity.
Biosignatures & Paleobiology
If you were looking for the signatures of life on another world, you would want to take something small and portable with you.
A simple metric can be used to determine whether a planet or exoplanet can clear its orbital zone during a characteristic time scale, such as the lifetime of the host star on the main sequence.
Recent Status Reports