Recently in the Astrobiology (general) Category

If the origin of life is common on other worlds, the universe should be a cosmic zoo full of complex multicellular organisms.

On The Habitability of Our Universe

Is life most likely to emerge at the present cosmic time near a star like the Sun? We consider the habitability of the Universe throughout cosmic history, and conservatively restrict our attention to the context of "life as we know it" and the standard cosmological model, LCDM.

The field of astrobiology has made tremendous progress in modelling galactic-scale habitable zones which offer a stable environment for life to form and evolve in complexity.

The Astrobiology Program of NASA's Science Mission Directorate (SMD) is joining with the Directorate for Biological Sciences (BIO) and the Directorate of Geosciences (GEO) of the National Science Foundation to sponsor an "Ideas Lab" activity on the Origins of Life.

Are humans unique and alone in the vast universe? This question-- summed up in the famous Drake equation--has for a half-century been one of the most intractable and uncertain in science.

The first scientific Roadmap for European Astrobiology was published on March 21st. This strategic landmark for European astrobiology has been produced through the European Commission-funded AstRoMap project (2013-2015).

Ken Souza, Space Biologist

Keith's note: I was deeply saddened to learn that my long time friend Ken Souza died suddenly yesterday. Ken was probably the first NASA life scientist I got to know when I started with NASA in the mid-1980s.

Are we alone in the universe? To answer this question, astronomers have been using a variety of methods in the past decades to search for habitable planets and for the signals from extraterrestrial observers.

Research from the University of Washington-based Virtual Planetary Laboratory published Feb. 26 in Astrophysical Journal Letters will help astronomers better identify -- and thus rule out -- "false positives" in the search for life beyond Earth.

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.