http://www.marsnews.com/ en-us tourdemars@marsnews.com Copyright 2010 Mon, 03 May 2010 15:28:32 -0800 Sun, 15 Aug 2010 08:53:55 -0800 http://www.movabletype.org/?v=3.2 tourdemars@marsnews.com 60 We have all seen the famous humanoid face-shaped rock from mars but we know it’s not real, these images and shapes are caused by natural erosion due to the weather patterns and, if you look hard enough and long enough, you will find whatever your mind wants to find, from human faces to pyramids. I myself am not a lunatic, neither do I believe in conspiracy theories, I believe in mathematics and science but I still have an open mind. Something though caught my attention yesterday, whilst watching an interview from last year with Buzz Aldrin. He spoke about space travel and the reasons we should be going back to the moon and even landing on asteroids. I know it was probably a lot of spin to get people talking about and therefore funding space travel, but what he said next definitely got my attention. He spoke about the moons of Mars, saying that on the moon Phobos there is a monolith and that when people see this they will start asking questions about it, some will say God put it there and others will say the universe put it there. These were his words and there is a definite glint in his eye when he speaks about the monolith. http://www.marsnews.com/archives/2010/05/03/the_phobos_monolith.html Future Missions Mon, 03 May 2010 15:28:32 -0800 The Mars Global Surveyor (MGS) is a NASA mission that arrived at Mars in September, 1997, and for nine years circled the planet every two hours in a polar orbit (that is, traveling from the north pole to the south pole and back) at an altitude of 400 kilometers (249 miles) above the Martian surface. MGS went silent in November, 2006. It carried a suite of five instruments designed to study the entire Martian surface, atmosphere, and interior, and their datasets have provided astronomers with a wealth of information about the climate and atmosphere of Mars. The results are not only interesting to students of Mars. As astronomers discover new extrasolar planets, and as Earth-based meteorologists test the realism of their atmospheric models, the results of meteorological analyses of another planet besides Earth provide an important reference. http://www.marsnews.com/archives/2010/03/17/martian_weather.html Planetology Wed, 17 Mar 2010 13:22:52 -0800 What could have formed these unusual channels? Inside Newton Basin on Mars, numerous narrow channels run from the top down to the floor. The above picture covers a region spanning about 1500 meters across. These and other gullies have been found on Mars in recent high-resolution pictures taken by the orbiting Mars Global Surveyor robot spacecraft. Similar channels on Earth are formed by flowing water, but on Mars the temperature is normally too cold and the atmosphere too thin to sustain liquid water. Nevertheless, many scientists hypothesize that liquid groundwater can sometimes surface on Mars, erode gullies and channels, and pool at the bottom before freezing and evaporating. If so, life-sustaining ice and water might exist even today below the Martian surface -- water that could potentially support a human mission to Mars. Research into this exciting possibility is sure to continue! http://www.marsnews.com/archives/2010/03/08/unusual_gullies_and_channels_on_mars.html Planetology Mon, 08 Mar 2010 13:15:19 -0800 What does Earth look like when viewed from Mars? At 13:00 GMT on 8 May 2003, the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) had an opportunity to find out. In addition, a fortuitous alignment of Earth and Jupiter---the first planetary conjunction viewed from another planet---permitted the MOC to acquire an image of both of these bodies and their larger satellites. At the time, Mars and the orbiting camera were 139 million kilometers (86 million miles) from Earth and almost 1 billion kilometers (nearly 600 million miles) from Jupiter. The orbit diagram, above, shows the geometry at the time the images were obtained. Because Jupiter is over 5 times farther from the Sun than Earth, two different exposures were needed to image the two planets. Mosaiced together, the images are shown above (top picture). The composite has been highly contrast-enhanced and "colorized" to show both planets and their satellites. The MGS MOC high resolution camera only takes grayscale (black-and-white) images; the color was derived from Mariner 10 and Cassini pictures of Earth/Moon and Jupiter, respectively. http://www.marsnews.com/archives/2009/10/15/earth_moon_and_jupiter_as_seen_from_mars.html Mars Global Surveyor Thu, 15 Oct 2009 09:55:11 -0800 Human error triggered a cascade of events that caused the battery to fail on the Mars Global Surveyor last year, according to a preliminary report released Friday. An internal NASA board determined that power loss likely doomed the spacecraft after almost a decade of meticulously mapping the Red Planet. But the problems can be traced to September 2005 when a routine update to onboard computers caused inconsistencies in the spacecraft’s memory. Engineers trying to fix the problem sent incorrect software commands then didn’t catch the mistakes because the existing procedures to do so were inadequate. http://www.marsnews.com/archives/2007/04/14/mars_orbiters_loss_traced_to_human_error.html Mars Global Surveyor Sat, 14 Apr 2007 00:17:04 -0800 After studying Mars four times as long as originally planned, NASA's Mars Global Surveyor orbiter appears to have succumbed to battery failure caused by a complex sequence of events involving the onboard computer memory and ground commands. The causes were released today in a preliminary report by an internal review board. The board was formed to look more in-depth into why NASA's Mars Global Surveyor went silent in November 2006 and recommend any processes or procedures that could increase safety for other spacecraft. Mars Global Surveyor last communicated with Earth on Nov. 2, 2006. Within 11 hours, depleted batteries likely left the spacecraft unable to control its orientation. "The loss of the spacecraft was the result of a series of events linked to a computer error made five months before the likely battery failure," said board Chairperson Dolly Perkins, deputy director-technical of NASA Goddard Space Flight Center, Greenbelt, Md. http://www.marsnews.com/archives/2007/04/14/report_reveals_likely_causes_of_mars_spacecraft_loss.html Mars Global Surveyor Sat, 14 Apr 2007 00:14:32 -0800 NASA's Mars Global Surveyor (MGS) spacecraft has failed to check in with Earth for the fifth straight day in a row, after losing contact during a routine adjustment of its solar array. If contact is not reestablished by Saturday, NASA might try to have another Mars-orbiting spacecraft take pictures of MGS to assess its condition. On Nov. 2, MGS mangers sent commands for the spacecraft to adjust the position of one of its solar power arrays to better track the sun. Returning data indicated a problem with the motor that moves the array, so a backup motor and control circuitry were switched on. No signal was received on Nov. 3 and 4, but a weak signal was received on Nov. 5, suggesting the spacecraft had switched to a safe mode and was awaiting further instructions from Earth. The signal cut out completely later that day and nothing has been heard since. http://www.marsnews.com/archives/2006/11/12/nasa_loses_contact_with_mars_global_surveyor.html Mars Global Surveyor Sun, 12 Nov 2006 15:46:29 -0800 New gullies that did not exist in mid-2002 have appeared on a Martian sand dune. That's just one of the surprising discoveries that have resulted from the extended life of NASA's Mars Global Surveyor, which this month began its ninth year in orbit around Mars. Boulders tumbling down a Martian slope left tracks that weren't there two years ago. New impact craters formed since the 1970s suggest changes to age-estimating models. And for three Mars summers in a row, deposits of frozen carbon dioxide near Mars' south pole have shrunk from the previous year's size, suggesting a climate change in progress. http://www.marsnews.com/archives/2005/09/22/orbiters_long_life_helps_scientists_track_changes_on_mars.html Mars Global Surveyor Thu, 22 Sep 2005 23:58:57 -0800 A NASA spacecraft circling Mars has spied, for the first time, two of its fellow probes orbiting the red planet. Red planet veteran Mars Global Surveyor (MGS) successfully photographed NASA’s Mars Odyssey probe and the European-built Mars Express spacecraft during a series of observations released Thursday. From its polar orbit around Mars, the MGS probe found Mars Express first as the two spacecraft flew over the red planet on April 20. Separated from its orbital target by a distance of 155 miles (249 kilometers), the MGS probed turned its Mars Orbiter Camera lens toward the passing spacecraft to snap the first two images of a red planet orbiter. http://www.marsnews.com/archives/2005/05/19/new_photos_are_first_of_spacecraft_orbiting_mars.html Mars Global Surveyor Thu, 19 May 2005 13:03:36 -0800 One of the more interesting and appealing activities of the Mars Orbiter Camera (MOC) observational objectives identified in the original 1985 Mars Observer proposal was to image landers on the martian surface. The scientific goal of this objective is to place the landers into their geologic context, which in turn helps the science community to better understand the results from the landers. In addition to this, the MOC team believed that it would be "really neat" to see the landers sitting on the surface. In previous releases, we have shown images of Viking Lander 1, Mars Pathfinder, and the two Mars Exploration Rovers, Spirit and Opportunity. To this group of landers we can now add with certainty Viking Lander 2 (VL-2), the location of which has been uncertain by many kilometers for nearly 30 years. We also believe that we have found a candidate for the location of the Mars Polar Lander, which failed without a trace on 3 December 1999. http://www.marsnews.com/archives/2005/05/06/mgs_finds_viking_lander_2_and_mars_polar_lander_maybe.html Mars Global Surveyor Fri, 06 May 2005 00:00:20 -0800 The search is back on for a spacecraft that disappeared during a landing attempt nearly six years ago. And there are hints that the probe might have been found. Mars Polar Lander was headed for a touchdown near the planet’s south pole Dec. 3, 1999. But the spacecraft never reported home. http://www.marsnews.com/archives/2005/05/02/search_on_again_for_mars_polar_lander.html Mars Polar Lander Mon, 02 May 2005 14:17:19 -0800 Five spacecraft are circling Mars and creeping across its ruddy surface, looking for traces of long-gone waters and signs that the cold, arid planet may once have been hospitable to life. The robotic martian invasion - three orbiters and two six-wheeled rovers - has already uncovered strong evidence that water once flowed on Mars and is now locked in subsurface ice. But big questions about water on Mars remain. When did it flow? How long did it last? How much was there? Where did it come from? Where did it go? Perhaps the most tantalizing question: Were there long-lived watery environments where microbial life could have gained a foothold? http://www.marsnews.com/archives/2004/11/11/mars_answers_spur_questions.html General News Thu, 11 Nov 2004 09:33:54 -0800 A spacecraft orbiting Mars photographed one of NASA's rovers and its tracks on the surface, the space agency said Monday. The image made by a camera aboard the Mars Global Surveyor shows a dark dot identified as the rover Spirit next to giant Bonneville Crater and the thin dark line of its tracks leading back to its lander. The picture was made by rolling the entire spacecraft, adjusting its rotation rate to match the ground speed under the camera, a process that produces sharper images. http://www.marsnews.com/archives/2004/09/28/mars_orbiter_spots_rovers_tracks_from_space.html Mars Exploration Rovers Tue, 28 Sep 2004 09:02:20 -0800 This latest volume brings the exploration of Mars up to date. Including the latest results from the amazingly successful Mars Exploration Rovers, Spirit and Opportunity, as well as progress reports from the Mars Global Surveyor and Mars Odyssey missions. 416 pages with 248 pages of color images INCLUDES DVD-V / DVD-ROM. http://www.marsnews.com/archives/2004/08/11/mars_the_nasa_mission_reports_vol_2.html General News Wed, 11 Aug 2004 09:13:01 -0800 The venerable Mars Global Surveyor (MGS) spacecraft, built by Lockheed Martin, completed its 25,000th orbit around Mars recently and is still going strong. Built by Lockheed Martin Space Systems in partnership with the Jet Propulsion Laboratory for NASA's Mars exploration program, MGS achieved this major milestone May 26, demonstrating its yeoman's performance as the "big brother" of orbiters circling Mars and mapping the planet's surface since 1997, as no other Mars exploration spacecraft has done before. The Mars Global Surveyor is approaching the beginning of its eighth year of mission operations in orbit around Mars and continues its record of collecting more information about the red planet than all previous missions combined. http://www.marsnews.com/archives/2004/06/07/mars_global_surveyor_completes_over_25000_orbits_and_continues_to_rewrite_the_history_books_on_mars.html Mars Global Surveyor Mon, 07 Jun 2004 16:41:27 -0800