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Topic: Mars Science Laboratory ProjectWritten by Timothy Childers
The study used data from NASA’s Curiosity rover on Mars and was conducted by researchers on Curiosity’s Sample Analysis at Mars (SAM) instrument team and international colleagues. ![]() Data from NASA’s Curiosity Mars rover were used in a new paper studying how asteroids impacting the ancient Martian atmosphere could have produced key ingredients to life. Those data were provided by Curiosity’s Sample Analysis at Mars instrument. (NASA/JPL-Caltech/MSSS) «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 Mars Curiosity rover measurements of Weather, Soil reveals possibility of Liquid Brine on MarsWritten by Guy WebsterNASA’s Jet Propulsion Laboratory
Perchlorate identified in Martian soil by the Curiosity mission, and previously by NASA’s Phoenix Mars Lander mission, has properties of absorbing water vapor from the atmosphere and lowering the freezing temperature of water. This has been proposed for years as a mechanism for possible existence of transient liquid brines at higher latitudes on modern Mars, despite the Red Planet’s cold and dry conditions. ![]() The Rover Environmental Monitoring Station (REMS) on NASA’s Curiosity Mars rover includes temperature and humidity sensors mounted on the rover’s mast. One of the REMS booms extends to the left from the mast in this view. (NASA/JPL-Caltech/MSSS) «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’s Mars Curiosity rover discovers Two Tone Mineral Veins on side of Martian MountainWritten by Guy Webster
Curiosity has analyzed rock samples drilled from three targets lower on the mountain in the past seven months. It found a different mineral composition at each, including a silica mineral named cristobalite in the most recent sample. ![]() This March 18, 2015, view from the Mast Camera on NASA’s Curiosity Mars rover shows a network of two-tone mineral veins at an area called “Garden City” on lower Mount Sharp. (NASA/JPL-Caltech/MSSS) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars Curiosity Rover discovers Nitrogen on MarsWritten by Nancy Neal-Jones / William Steigerwald
The nitrogen was detected in the form of nitric oxide, and could be released from the breakdown of nitrates during heating. Nitrates are a class of molecules that contain nitrogen in a form that can be used by living organisms. The discovery adds to the evidence that ancient Mars was habitable for life. ![]() This self-portrait of NASA’s Mars rover Curiosity combines dozens of exposures taken by the rover’s Mars Hand Lens Imager (MAHLI) during the 177th Martian day, or sol, of Curiosity’s work on Mars (Feb. 3, 2013), plus three exposures taken during Sol 270 (May 10, 2013) to update the appearance of part of the ground beside the rover. «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars Curiosity rover uses arm to move sample rock powder to analyzing instrumentWritten by Guy Webster
The Chemistry and Mineralogy (CheMin) analytical instrument inside the rover received the sample powder. This sample comes from a rock target called “Telegraph Peak,” the third target drilled during about six months of investigating the “Pahrump Hills” outcrop on Mount Sharp. With this delivery completed, the rover team plans to drive Curiosity away from Pahrump Hills in coming days. ![]() This area at the base of Mount Sharp on Mars includes a pale outcrop, called “Pahrump Hills,” that NASA’s Curiosity Mars rover investigated from September 2014 to March 2015, and the “Artist’s Drive” route toward higher layers of the mountain. (NASA/JPL-Caltech/Univ. of Arizona) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars Curiosity rover examines powder sample taken at Mount SharpWritten by Guy Webster
The rover used a new, low-percussion-level drilling technique to collect sample powder last week from a rock target called “Mojave 2.” Curiosity reached the base of Mount Sharp five months ago after two years of examining other sites inside Gale Crater and driving toward the mountain at the crater’s center. The first sample of the mountain’s base layer came from a target called “Confidence Hills,” drilled in September. ![]() Gray cuttings from Curiosity’s drilling into a target called “Mohave 2” are visible surrounding the sample-collection hole in this Jan. 31, 2015, image from the rover’s MAHLI camera. This site in the “Pahrump Hills” outcrop provided the mission’s second drilled sample of Mars’ Mount Sharp. (NASA/JPL-Caltech/MSSS) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars Curiosity Rover set to drill into Mineral Crystal Rock on MarsWritten by Guy Webster
This target, called “Mojave,” displays copious slender features, slightly smaller than grains of rice, that appear to be mineral crystals. A chance to learn their composition prompted the Curiosity science team to choose Mojave as the next rock-drilling target for the 29-month-old mission investigating Mars’ Gale Crater. The features might be a salt mineral left behind when lakewater evaporated. This week, Curiosity is beginning a “mini-drill” test to assess the rock’s suitability for deeper drilling, which collects a sample for onboard laboratory analysis. ![]() This view from the wide-angle Hazard Avoidance Camera on the front of NASA’s Curiosity Mars Rover shows the rover’s drill in position for a mini-drill test to assess whether a rock target called “Mojave” is appropriate for full-depth drilling to collect a sample. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars Curiosity Rover discovers sediment deposits in Martian Lake BedWritten by Guy Webster
This interpretation of Curiosity’s finds in Gale Crater suggests ancient Mars maintained a climate that could have produced long-lasting lakes at many locations on the Red Planet. “If our hypothesis for Mount Sharp holds up, it challenges the notion that warm and wet conditions were transient, local, or only underground on Mars,” said Ashwin Vasavada, Curiosity deputy project scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California. “A more radical explanation is that Mars’ ancient, thicker atmosphere raised temperatures above freezing globally, but so far we don’t know how the atmosphere did that.” ![]() This evenly layered rock photographed by the Mast Camera (Mastcam) on NASA’s Curiosity Mars Rover on Aug. 7, 2014, shows a pattern typical of a lake-floor sedimentary deposit not far from where flowing water entered a lake. (NASA/JPL-Caltech/MSSS) «Read the rest of this article» Sections: Technology | No Comments
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