A team of scientists has used NASA’s Goldstone Solar System Radar and the U.S. National Science Foundation Green Bank Telescope (NSF GBT) to carry out the most extensive radar study […]
Journal articles
Posted inAI - Data - Apps - Cybernetics, Astrobiology (general), Education and Outreach, Journal articles, NASA Astrobiology Program, Status Report
From Collaboration to Curation: Building NASA Astrobiology’s Living Bibliography in SciX
Editor’s note: This is an excerpt from SciX blog post By Jenny Koch (SciX Digital Librarian) and Jennifer Lynn Bartlett (SciX Project Scientist for Astrophysics) Keeping track of scientific publications […]
Posted inComets and Asteroids, Exoplanets, -moons, -comets, Journal articles, Press Release
Inferring Late Stage Enrichment of Exoplanet Atmospheres from Observed Interstellar Comets
The discovery of the first two interstellar comets implies that, on average, every star contributes a substantial amount of material to the galactic population by ejecting such bodies from the […]
Posted inIcy Worlds, Journal articles, Press Release, Water/Hycean Worlds & Oceanography
Our Solar System and Beyond is Awash in Water
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 […]
Posted inJournal articles, Radiation
Cosmic Rays: A Review for Astrobiologists
Cosmic rays represent one of the most fascinating research themes in modern astronomy and physics. Significant progress is being made toward an understanding of the astrophysics of the sources of […]
Posted inJournal articles, Origin & Evolution of Life
Why Is the Definition of Life So Elusive? Epistemological Considerations
A central question of astrobiology concerns the origin and distribution of life in the Universe. For this reason, astrobiology can be considered to fall within the science called transitional biology. […]
Posted inExtremeophiles and Extreme Environments, Journal articles
Isotopic Composition of Methane and Inferred Methanogenic Substrates Along a Salinity Gradient in a Hypersaline Microbial Mat System
The importance of hypersaline environments over geological time, the discovery of similar habitats on Mars, and the importance of methane as a biosignature gas combine to compel an understanding of […]
Posted inGenomics, Proteomics, Bioinformatics, Journal articles, Plant Biology, Space Life Science
Effects of a Spaceflight Environment on Heritable Changes in Wheat Gene Expression
Once it was established that the spaceflight environment was not a drastic impediment to plant growth, a remaining space biology question was whether long-term spaceflight exposure could cause changes in […]
Posted inJournal articles, SETI & Technosignatures
OSETI with STACEE: A Search for Nanosecond Optical Transients from Nearby Stars
We have used the Solar Tower Atmospheric Cherenkov Effect Experiment (STACEE) high-energy gamma-ray detector to look for fast blue-green laser pulses from the vicinity of 187 stars. The STACEE detector […]
Posted inAstrobiology (general), Journal articles, Origin & Evolution of Life
The Search for Alien Life in Our Solar System: Strategies and Priorities
With the assumption that future attempts to explore our Solar System for life will be limited by economic constraints, we have formulated a series of principles to guide future searches: […]