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Latest SHARAD Stories

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2006-10-16 15:40:00

For a number of decades now, astronomers have wondered about water on Mars. Thanks to ESA's Mars Express, much of the speculation has been replaced with facts. Launched on 2 June 2003, Mars Express has changed the way we think of Mars. Since the Viking missions of the 1970s, planetary scientists have changed their perception of water on Mars several times, passing from the picture of a dry planet to that of a warmer and wetter one. Mars Express's data are now shading a new light on the...

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2006-09-20 15:10:00

NASA's Mars Reconnaissance Orbiter has extended the long-armed antenna of its radar, preparing the instrument to begin probing for underground layers of Mars. The orbiter's Shallow Subsurface Radar, provided by the Italian Space Agency, will search to depths of about one kilometer (six-tenths of a mile) to find and map layers of ice, rock and, if present, liquid water. The radar's antenna had remained safely folded and tucked away throughout the flight to Mars from Aug. 12, 2005, to March...

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2006-03-08 06:35:00

WUSTL -- Two Mars orbiter missions - one from NASA, the other from the European Space Agency (ESA) - will open new vistas in the exploration of Mars through the use of sophisticated ground-penetrating radars, providing international researchers with the first direct clues about the Red Planet's subsurface structure. Roger Phillips, Ph.D., Washington University in St. Louis Professor of Earth and Planetary Sciences in Arts & Sciences, is participating in both the Mars Express (ESA) and...

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2005-11-17 07:41:58

ESA -- The Mars Express radar, MARSIS, has now been deployed for more than four months. Here we report on the activities so far. For the operational period up to now, Mars Express has been making its closest approaches to Mars predominantly in the daytime portion of its orbit. The MARSIS radar's scientists are mainly collecting data about the upper layers of the Martian atmosphere, or "Ëœionosphere', which is the highly electrically conducting layer that is maintained by...

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2005-10-25 18:50:00

NASA -- In August 2003, as the twin Mars Exploration Rovers were barreling toward Mars in their flying saucers, scientists and engineers sent a radio signal disguised as the rovers' "voice" to the Odyssey orbiter at Mars. The call to Odyssey was what Dr. John Callas, Mars Exploration Rover Science Manager, defines as a "can-you-hear-me-now?" test. Scientists and engineers wanted to ensure the UHF (ultra-high frequency) radio system on Odyssey, a primary communications relay between the...

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2005-08-25 06:50:00

The Mars Reconnaissance Orbiter launched on August 12, and when it arrives at Mars it will search for evidence of water in the martian atmosphere, surface, and subsurface. This orbiter also will provide detailed surveys of the planet, identifying any obstacles that could jeopardize the safety of future landers and rovers. Astrobiology Magazine -- The Mars Reconnaissance Orbiter launched on August 12, and now is on its seven-month journey to the Red Planet. Once there, MRO will search for...

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2005-08-06 18:50:50

ESA -- MARSIS, the sounding radar on board ESA's Mars Express spacecraft, is collecting the first data about the surface and the ionosphere of Mars. The radar started its science operations on 4 July 2005, after the first phase of its commissioning was concluded on the same day. Due to the late deployment of MARSIS, it was decided to split the commissioning, originally planned to last four weeks, into two phases, one of which has just ended and the second one to be started by December...

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2005-02-15 07:45:00

The use of orbiting radar to probe the first three miles underneath the martian surface has been greenlighted. Following review board panels to assess the feasibility, the Mars Express probe will commence its underground searching in May. Astrobiology Magazine -- The European Space Agency has given the green light for the MARSIS radar on board its Mars Express spacecraft to be deployed during the first week of May. Assuming that this operation is successful, the radar will finally start the...