December 2007 - Astrobiology

Astrobiology Science News 27 December 2007

by Keith CowingDecember 27, 2007

Criteria for mixing rules application for inhomogeneous astrophysical grains, astro-ph Accounting for velocity jitters in planet search surveys, astro-ph Five Planets Orbiting 55 Cancri, astro-ph

News Summary Archives

Astrobiology Science News 22 December 2007

by Keith CowingDecember 22, 2007

Astrobiology (general), NASA Astrobiology Program, Reports, Roadmaps, & Plans

NRC Report: Assessment of the NASA Astrobiology Institute

by Keith CowingDecember 21, 2007

News Summary Archives

Astrobiology Science News 21 December 2007

by Keith CowingDecember 21, 2007

News Summary Archives

Astrobiology Science News 20 December 2007

by Keith CowingDecember 20, 2007

News Summary Archives

Astrobiology Science News 19 December 2007

by Keith CowingDecember 19, 2007

News Summary Archives

Astrobiology Science News 18 December 2007

by Keith CowingDecember 18, 2007

News Summary Archives

Astrobiology Science News 17 December 2007

by Keith CowingDecember 17, 2007

Missions & Hardware

Astronomy and Physics Research and Analysis (APRA)

by Keith CowingDecember 16, 2007

Education and Outreach

Virtual Laboratories and Virtual Worlds

by Keith CowingDecember 16, 2007

Extreme Arabian Environments And Their Microbiomes: New Frontiers For Astrobiology And Biosignature Discovery

Astrobiology assesses the habitability of planetary bodies and the potential for extraterrestrial life. Analog environments on Earth serve as sites for studying extreme environments that resemble extraterrestrial conditions, aiding in validating life-detection methods, mission instrumentation, and biosignature preservation. These environments function as a source of model microorganisms and communities that define the habitability and biochemistry…

by Keith Cowing April 13, 2026April 13, 2026

From Early Earth to Enceladus – Mineral Electrochemistry Could Drive Organic Synthesis

At some point in Earth’s history, chemistry transitioned from abiotic organic synthesis—the building of more complicated organic molecules from smaller ones by nonbiological means—to biochemistry. Hydrothermal settings are compelling sites for the origins of this transition because they are natural chemical reactors. In this non-equilibrium setting; hot, reduced fluids continuously mix with cold, oxidized seawater…

by Keith Cowing April 13, 2026April 13, 2026

Chang’e Mission Samples Reveal How Exogenous Organic Matter Evolves On The Moon

Elements essential to life, such as carbon, nitrogen, oxygen, phosphorus, and sulfur, were “delivered” to the Earth and Moon during the early stages of the Solar System via asteroids and comets impacting their surfaces. These exogenous materials may have provided the chemical building blocks necessary for the origin and early evolution of life on Earth.…

by Keith Cowing April 13, 2026April 13, 2026