UA-113443594-1

Recent work challenges view of early Mars, picturing a warm desert...

IMAGE: The Grand Canyon (a) versus a Martian dendritic river system (b) (Arabia quadrangle; 12 degrees N, 43 degrees E). Slight morphologic differences between terrestrial and Martian comparisons may be attributed... view more  Credit: Google/Landsat/Copernicus (a) and Google/NASA/JPL/University of Arizona (b). Images adapted from Ramirez and Craddock (2018), Nature Geoscience The climate of early Mars is a subject of debate. While it has been thought that…

Hawking’s last paper co-authored with ERC grantee posits new cosmology

Professor Stephen Hawking's final theory on the origin of the universe, which he worked on in collaboration with Professor Thomas Hertog from KU Leuven, has been published this week in the Journal of High-Energy Physics. Professor Hertog, whose work has been supported by the EU's European Research Council, first announced the new theory at a conference in Cambridge in July of last year, organised on…

Helium detected in exoplanet atmosphere for the first time

Astronomers have detected helium in the atmosphere of a planet that orbits a star far beyond our solar system for the very first time. An international team of researchers, led by Jessica Spake from the University of Exeter, discovered evidence of the inert gas on 'super-Neptune' exoplanet WASP-107b, found 200 light years from Earth and in the constellation of Virgo. The pivotal breakthrough, made from…

NASA’s GPM examines developing US severe weather

The Global Precipitation Measurement mission or GPM core satellite has been busy analyzing severe weather in the U.S. Until May 1, tornado alley was experiencing a drought of spring tornadoes. The eighteen tornadoes reported in the area yesterday may be a sign of things to come. Moisture laden air from the Gulf of Mexico is having a more normal interaction with dry air flowing from…

Microbes living in a toxic volcanic lake could hold clues to...

IMAGE: Sarah Black, who recently completed her Ph.D. in Geological Sciences at CU Boulder, collects water samples from Laguna Caliente. view more  Credit: Brian Hynek Researchers at the University of Colorado Boulder have discovered microbes living in a toxic volcanic lake that may rank as one of the harshest environments on Earth. Their findings, published recently online, could guide scientists looking for signs of ancient life…

Flares in the universe can now be studied on Earth

Solar flares, cosmic radiation, and the northern lights are well known phenomena. But exactly how their enormous energy arises is not as well understood. Now, physicists at Chalmers University of Technology, Sweden, have discovered a new way to study these spectacular space plasma phenomena in a laboratory environment. The results have been published in the renowned journal Nature Communications. "Scientists have been trying to bring…

GPM satellite views Tropical Cyclone Flamboyan’s rainfall

IMAGE: On April 29, 2018, at 6:26 p.m. EDT (2226 UTC) GPM's Microwave Imager (GMI) scanned the center of the tropical cyclone and found rain falling there at a rate of... view more  Credit: NASA/JAXA, Hal Pierce Tropical Cyclone Flamboyan was being battered by vertical wind shear when the Global Precipitation Measurement mission or GPM core satellite passed overhead and analyzed its rainfall rates. Tropical Cyclone…

Back to (nucleic) bases

IMAGE: The miniPCR is used for a variety of genetic investigations to help astronauts quickly amplify,or make copies of, a single DNA sequence. view more  Credit: NASA What do astronauts, microbes, and plants all have in common? Each relies on deoxyribonucleic acid (DNA) - essentially a computer code for living things - to grow and thrive. Studying DNA in space could lead to a better understanding…

NIST/NASA study shows one detector doesn’t ‘fit all’ for smoke in...

What had been a peaceful and productive mission for the six men aboard the Russian space station Mir, including U.S. astronaut Jerry Linenger, nearly became a tragic nightmare during the evening of Feb. 24, 1997. A lithium-perchlorate canister, designed to generate oxygen via a chemical reaction, suddenly burst into flames when activated. Although the fire was quickly subdued, a dense, life-threatening smoke--different in form and…

NASA’s new Dellingr Spacecraft baselined for pathfinding CubeSat to Van Allen...

IMAGE: Studying the Van Allen radiation belts (illustrated here) is the scientific goal of a recently awarded GTOSat, which will use a more capable 6U CubeSat bus, the Dellingr-X. view more  Credit: NASA A new CubeSat mission -- GTOSat -- will not only provide key observations of the environmentally forbidding radiation belts that encircle Earth, it will provide initial steps of a new technological vision. This…
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