Results tagged “Astrobiology”

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 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).

In a harsh environment with very little water and intense ultraviolet radiation, most life in the extreme Atacama Desert in Chile exists as microbial colonies underground or inside rocks.

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.

If you were looking for the signatures of life on another world, you would want to take something small and portable with you.

Over the past two years 800 members of the astrobiology community have contributed, through in person meetings, white papers, a series of webinars and reviews, to define a new strategy for the next decade of astrobiology research. Mary Voytek, the Senior Scientist for Astrobiology, and Michael New, the Astrobiology Discipline Scientist, described the goal of the endeavor to create an "inspirational and aspirational" document. The strategy will replace the 2008 Astrobiology Roadmap.

Today the House Science, Space, and Technology Committee helad a hearing that reviewed the scientific methods employed to search for life, examine recent scientific discoveries in the field of astrobiology (the study of the origin, evolution, distribution, and future of life in the universe), and assess the prospects of finding life beyond Earth over the next decade.

The Astrobiological Periodic Table

The Astrobiological Periodic Table has been developed by astrobiologist Charles Cockell.

Self-organizing processes in chemical reaction/precipitation systems can lead to a variety of complex structures, including chemical gardens and inorganic membranes.

DNA is synonymous with life, but where did it originate? One way to answer this question is to try to recreate the conditions that formed DNA's molecular precursors.

Our Ocean's Cosmic Origin

A new study published in Science looks beyond the question of whether Earth's oceans can be traced to comets or other objects from space, and instead asks the question: where did the water in comets come from?

As NASA missions explore our solar system and search for new worlds, they are finding water in surprising places. Water is but one piece of our search for habitable planets and life beyond Earth, yet it links many seemingly unrelated worlds in surprising ways.

The self-organization properties of DNA-like molecular fragments four billion years ago may have guided their own growth into repeating chemical chains long enough to act as a basis for primitive life, says a new study by the University of Colorado Boulder and the University of Milan.

Learn about planets beyond our solar system, far-flung missions and possible life in the cosmos at "(un)Discovered Worlds," a one-day Cornell University space sciences conference, May 9, to inaugurate the new Institute for Pale Blue Dots.

Atmospheric chemical disequilibrium has been proposed as a method for detecting extraterrestrial biospheres from exoplanet observations.

NASA seeks a new Director for the NASA Astrobiology Institute (NAI). The ideal candidate will be an internationally recognized scientist with proven experience in leading or managing large interdisciplinary research programs or projects, possessed with a vision for leading the Institute into the future.

Astrobiology and the Search for Extraterrestrial Life by The University of Edinburgh. Self-paced online course.

Old Dominion University faculty member Nora Noffke has made a name for herself as a geobiologist during the past decade by producing sedimentary evidence that prokaryote biofilms existed on Earth billions of years ago.

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