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When haze built up in the atmosphere of Archean Earth, the young planet might have looked like this artist’s interpretation — a pale orange dot.
Sulfur Dioxide Signatures from the Ancient AtmosphereMay 22, 2018
One of the the last supernovae known to have exploded in our Milky Way Galaxy was the star that left behind the Cassiopeia A supernova remnant over 300 years ago, which is 11,000 light years away – much too far to have affected Earth.
Could Recent Supernovae be Responsible for Mass Extinctions?May 21, 2018
Evaporation, convection, rainfall and winds can even out heat imbalances in the atmosphere. Here, cumulus clouds carry solar energy away from Earth’s surface over South America.
New Method for Real-Time Analysis of Organic AerosolsMay 18, 2018
Comet 67P/Churyumov–Gerasimenko has ben visited by ESA’s Rosetta spacecraft, and could receive another visit from a potential NASA mission called CAESAR.
How Small Bodies are Playing a Big Role in Planetary ScienceMay 18, 2018
JSC Mars-1 is a martian regolith simulant used in laboratories on Earth to simulate chemical and mechanical properties of the martian regolith. JSC Mars-1 was developed at the NASA Johnson Space Center in 1998.
Extracting Amino Acids Using Supercritical Carbon DioxideMay 16, 2018
A computer simulation gives an idea of how Europa's magnetic field interacted with an erupting plume. Magnetic field lines (blue) show how the plume interacts with the ambient flow of Jovian plasma. Red colors on the lines show more dense areas of plasma.
Old Data Reveal New Evidence of Europa PlumesMay 15, 2018
This snakelike gas cloud (center dark area) in the constellation Musca resembles a skinny filament. But it’s actually a flat sheet that extends about 20 light-years into space away from Earth, an analysis finds.
First Mapping of Interstellar Clouds in Three DimensionsMay 14, 2018
At the University of Wisconsin–Madison, researchers have forged partnerships with colleagues in South Africa and are uncovering answers and opening new scientific frontiers.
Interactive Web Site Delves into the Science of OriginsMay 14, 2018
Southwest of the Los Angeles coast lies Santa Catalina Island, a 35-kilometer- (22-mile-) long island that runs roughly northwest to southeast, and spans 13 kilometers (8 miles) at its widest point.
Genome Sequence of a Chemolithoautotrophic Sulfur and Iron OxidizerMay 11, 2018
Title screen from Life Underground, where students take the role of investigators of extreme subsurface environments looking for microbial life.
Life Underground: The GameMay 10, 2018
The scientific search underway for life beyond Earth requires input from many disciplines and fields. Strategies forward have to hear and take in what scientists in those many fields have to say.
New Science Teams for the NASA Astrobiology Institute SelectedMay 10, 2018
Atlanta, Georgia, USA.
AbGradCon 2018May 10, 2018
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