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                Habitable Zones & Global Climate

                Large Exoplanet Could Have The Right Conditions For Life

                Astronomers have found an exoplanet more than twice the size of Earth to be potentially habitable, opening the search for life to planets significantly larger than Earth but smaller than Neptune.

                移动棋牌Meteorites, Asteroids, & Comets

                Ancient Meteorite Site On Earth Could Reveal New Clues About Mars' Past

                Scientists have devised new analytical tools to break down the enigmatic history of Mars' atmosphere -- and whether life was once possible there.

                Habitable Zones & Global Climate

                The Interior And Atmosphere Of The Habitable-zone Exoplanet K2-18b

                移动棋牌Exoplanets orbiting M dwarfs present a valuable opportunity for their detection and atmospheric characterisation. This is evident from recent inferences of H2O in such atmospheres, including that of the habitable-zone exoplanet K2-18b.

                TRAPPIST-1

                TRAPPIST-1 Habitable Atmosphere Intercomparison (THAI). Motivations And Protocol Version 1.0

                移动棋牌Upcoming telescopes such as the James Webb Space Telescope (JWST), or the Extremely Large Telescope (ELTs), may soon be able to characterize, through transmission, emission or reflection spectroscopy, the atmospheres of rocky exoplanets orbiting nearby M dwarfs.

                Astrochemistry

                Separate Silicate And Carbonaceous Solids Formed From Mixed Atomic And Molecular Species Diffusing In Neon Ice

                The formation and growth of refractory matter on pre-existing interstellar dust grain surfaces was studied experimentally by annealing neon-ice matrices in which potential precursors of silicate grains (Mg and Fe atoms, SiO and SiO2 molecules) and of solid carbon (Cn molecules, n = 2-10) were initially isolated.

                Astrobiology (general)

                NASA Continues To Hide Its Astrobiology Program

                移动棋牌NASA's Science Mission Directorate (SMD) has an extensive of contact information for all of its research programs. Virtually everything SMD does has a contact listed - except Astrobiology. The word is not mentioned at all - even though many of its sub topics are mentioned. NASA issues research solicitations for "Astrobiology" yet they can't be bothered to tell people who to contact for the programs managed under "Astrobiology" at NASA?

                移动棋牌Extremeophiles and Extreme Environments

                Unique Non-oxygen Breathing Animal Discovered

                移动棋牌Researchers at Tel Aviv University (TAU) have discovered a non-oxygen breathing animal. The unexpected finding changes one of science's assumptions about the animal world.

                Extremeophiles and Extreme Environments

                Mineralogy of a Sulfate-rich Inverted Channel in the Atacama Desert, Chile: Clues to its Formation and Preservation

                We have performed a stratigraphic and mineralogical analysis of a vertical transect across a ridge located at the distal end of a system of eroded alluvial deposits in the northern Atacama Desert of Chile.

                移动棋牌Space Weather

                Solar Storms Could Scramble Whales' Navigational Sense

                When our sun belches out a hot stream of charged particles in Earth's general direction, it doesn't just mess up communications satellites. It might also be scrambling the navigational sense of California gray whales (Eschrichtius robustus), causing them to strand on land, according to a Duke University graduate student.

                Extrasolar Planets

                EDEN: Sensitivity Analysis and Transiting Planet Detection Limits for Nearby Late Red Dwarfs

                移动棋牌Small planets are common around late-M dwarfs and can be detected through highly precise photometry by the transit method. Planets orbiting nearby stars are particularly important as they are often the best-suited for future follow-up studies.

                Fossils

                1 Billion-year-old Green Seaweed Fossils identified, Relative Of Modern Land Plants

                移动棋牌Virginia Tech paleontologists have made a remarkable discovery in China: 1 billion-year-old micro-fossils of green seaweeds that could be related to the ancestor of the earliest land plants and trees that first developed 450 million years ago.


                Recent Releases

                Recent Status Reports

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