http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (Phys.org)—A Martian dust storm that NASA's Mars Reconnaissance Orbiter has been tracking since last week has also produced atmospheric changes detectable by rovers on Mars. http://phys.org/news272784206.html Space & Earth Thu, 22 Nov 2012 05:23:47 EST news272784206 Why is Mars cold and dry? While some recent studies hint that early Mars may have never been wet or warm, many scientists think that long ago, Mars once had a denser atmosphere that supported liquid water on the surface. If so, Mars might have had environmental conditions to support microbial life. However, for some reason, most of the Martian atmosphere was lost to space long ago and the thin wispy atmosphere no longer allows water to be stable at the surface. Scientists aren't sure how or why this happened, but one way a planet can lose its atmosphere is through a process called 'sputtering.' In this process, atoms are knocked away from the atmosphere due to impacts from energetic particles. http://phys.org/news266751510.html Space & Earth Thu, 13 Sep 2012 10:38:37 EST news266751510 (Phys.org) -- On Aug. 20, NASA announced the selection of InSight, a new Discovery-class mission that will probe Mars at new depths by looking into the deep interior of Mars. http://phys.org/news264771875.html Space & Earth Tue, 21 Aug 2012 12:44:53 EST news264771875 (PhysOrg.com) -- An afternoon whirlwind on Mars lofts a twisting column of dust more than half a mile (800 meters) high in an image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. http://phys.org/news250416244.html Space & Earth Thu, 08 Mar 2012 08:04:26 EST news250416244 (PhysOrg.com) -- Hopes for reviving NASA's Spirit Mars rover dimmed further with passage last week of the point at which the rover's locale received its maximum sunshine for the Martian year. http://phys.org/news219927024.html Space & Earth Mon, 21 Mar 2011 12:40:14 EST news219927024 The rover Curiosity, which NASA's Mars Science Laboratory mission will place on Mars in August 2012, has been rolling over ramps in a clean room at NASA's Jet Propulsion Laboratory to test its mobility system. http://phys.org/news203677734.html Space & Earth Tue, 14 Sep 2010 10:09:08 EST news203677734 (PhysOrg.com) -- Heading into a period of the Martian year prone to major dust storms, the team operating NASA's twin Mars rovers is taking advantage of eye-in-the-sky weather reports. http://phys.org/news159122161.html Space & Earth Thu, 16 Apr 2009 17:36:47 EST news159122161 (PhysOrg.com) -- On a plain that stretches for miles in every direction, the panoramic camera on NASA's Mars rover Opportunity has caught a first glimpse on the horizon of the uplifted rim of the big crater that has been Opportunity's long-term destination for six months. http://phys.org/news156621141.html Space & Earth Wed, 18 Mar 2009 18:54:50 EST news156621141