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Recent Articles
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Topic: Meteorites
Now, the future that Apollo-era scientists envisioned has come. Their successors, many of whom weren’t even born when the last astronauts scooped up the Moon samples they’ll now be probing in their labs, are ready to take a giant leap towards answering long-standing questions about the evolution of our solar system. ![]() Jose Aponte and Hannah McLain work in the Astrobiology Analytical Laboratory at NASA’s Goddard Space Flight Center. The scientists who work in this lab analyze amino acids in Apollo samples, meteorites, and comet dust — in other words, in well-preserved remnants of the early solar system. (NASA’s Goddard Space Flight Center/Molly Wasser) «Read the rest of this article» Sections: Technology | No Comments
NASA collects Meteorites in AntarcticaWritten by Bill Steigerwald
“There was just no sound; no air handling equipment, no leaves rustling, no bugs, no planes or cars. So quiet you just heard your heartbeat,” said Barbara Cohen, planetary scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Most of the time, however, there is a steady howl of bitter cold wind flowing down from the East Antarctic ice plateau. With a summer temperature hovering around zero Fahrenheit, “It’s the wind that makes you cold,” Cohen said. «Read the rest of this article» Sections: Technology | No Comments
NASA’s Cassini mission and Hubble Space Telescope provides new details about moons Enceladus and EuropaWritten by Felicia Chou
In the papers, Cassini scientists announce that a form of chemical energy that life can feed on appears to exist on Saturn’s moon Enceladus, and Hubble researchers report additional evidence of plumes erupting from Jupiter’s moon Europa. ![]() This artist’s rendering shows Cassini diving through the Enceladus plume in 2015. New ocean world discoveries from Cassini and Hubble will help inform future exploration and the broader search for life beyond Earth. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Dawn spacecraft reveals new areas where Ice may hide on CeresWritten by Elizabeth Landau
But newly published studies from Dawn scientists show two distinct lines of evidence for ice at or near the surface of the dwarf planet. Researchers are presenting these findings at the 2016 American Geophysical Union meeting in San Francisco. ![]() This graphic shows a theoretical path of a water molecule on Ceres. Some water molecules fall into cold, dark craters called “cold traps,” where very little of the ice turns into vapor, even over the course of a billion years. (NASA/JPL-Caltech/UCLA/MPS/DLR/IDA) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars Curiosity Rover discovers evidence that Mars Surface Material contributes to AtmosphereWritten by Elizabeth Zubritsky
The findings come from the rover’s Sample Analysis at Mars, or SAM, instrument suite, which studied the gases xenon and krypton in Mars’ atmosphere. The two gases can be used as tracers to help scientists investigate the evolution and erosion of the Martian atmosphere. ![]() Processes in Mars’ surface material can explain why particular xenon (Xe) and krypton (Kr) isotopes are more abundant in the Martian atmosphere than expected, as measured by NASA’s Curiosity rover. Cosmic rays striking barium (Ba) or bromine (Br) atoms can alter isotopic ratios of xenon and krypton. (NASA/GSFC/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA’s OSIRIS-REx Spacecraft on it’s way to asteroid BennuWritten by Dwayne Brown / Laurie Cantillo
“Ee celebrate a huge milestone for this remarkable mission, and for this mission team,” said NASA Administrator Charles Bolden. “We’re very excited about what this mission can tell us about the origin of our solar system, and we celebrate the bigger picture of science that is helping us make discoveries and accomplish milestones that might have been science fiction yesterday, but are science facts today.” ![]() NASA’s OSIRIS-REx Spacecraft was launched into space at 7:05pm EDT Thursday, September 8th from Cape Canaveral Air Force Station in Florida. (NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Lunar Reconnaissance Orbiter discovers clues to swirling patterns on the MoonWritten by Bill Steigerwald
“These patterns, called ‘lunar swirls,’ appear almost painted on the surface of the moon,” said John Keller of NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “They are unique; we’ve only seen these features on the moon, and their origin has remained a mystery since their discovery.” Keller is project scientist for NASA’s Lunar Reconnaissance Orbiter (LRO) mission, which made the observations. ![]() This is an image of the Reiner Gamma lunar swirl from NASA’s Lunar Reconnaissance Orbiter. (NASA LRO WAC science team) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars Curiosity Rover examines Martian Atmosphere to learn about it’s pastWritten by Guy Webster
While NASA’s Curiosity rover concluded its detailed examination of the rock layers of the “Pahrump Hills” in Gale Crater on Mars this winter, some members of the rover team were busy analyzing the Martian atmosphere for xenon, a heavy noble gas. Curiosity’s Sample Analysis at Mars (SAM) experiment analyzed xenon in the planet’s atmosphere. Since noble gases are chemically inert and do not react with other substances in the air or on the ground, they are excellent tracers of the history of the atmosphere. ![]() A Sample Analysis at Mars (SAM) team member at NASA’s Goddard Space Flight Center in Maryland prepares the SAM testbed for an experiment. This test copy of SAM is inside a chamber that can model the pressure and temperature environment that SAM sees inside NASA’s Curiosity rover on Mars. (NASA/GSFC) «Read the rest of this article» Sections: Technology | No Comments
NASA Scientists recreate Building Blocks of Life by simulating Outer Space EnvironmentWritten by Ruth Marlaire
Pyrimidine is a ring-shaped molecule made up of carbon and nitrogen and is the central structure for uracil, cytosine, and thymine, which are all three part of a genetic code found in ribonucleic (RNA) and deoxyribonucleic acids (DNA). RNA and DNA are central to protein synthesis, but also have many other roles. ![]() Left to right: Ames scientists Michel Nuevo, Christopher Materese and Scott Sandford reproduce uracil, cytosine, and thymine, three key components of our hereditary material, in the laboratory. (NASA/ Dominic Hart) «Read the rest of this article» Sections: Technology | No Comments
NASA reports scientists discover evidence of Water Reservoir near Mar’s Surface from Meteorites on EarthWritten by William Jeffs
Though controversy still surrounds the origin, abundance and history of water on Mars, this discovery helps resolve the question of where the “missing Martian water” may have gone. Scientists continue to study the planet’s historical record, trying to understand the apparent shift from an early wet and warm climate to today’s dry and cool surface conditions. ![]() This illustration depicts Martian water reservoirs. Recent research provides evidence for the existence of a third reservoir that is intermediate in isotopic composition between the Red Planet’s mantle and its current atmosphere. These results support the hypothesis that a buried cryosphere accounts for a large part of the initial water budget of Mars. (NASA) «Read the rest of this article» Sections: Technology | No Comments
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