Tag Archives: martian atmosphere

NASA Radio Delivered for Europe’s 2016 Mars Orbiter

The first of two NASA Electra radios that will fly aboard the European Space Agency’s next mission to Mars has been delivered for installation onto the ESA ExoMars Trace Gas Orbiter (TGO).

The TGO is being assembled at Thales Alenia Space, in Cannes, France, for a 2016 launch opportunity. It will study the Martian atmosphere for the presence of methane and other gases that may be present in small concentrations. It will also deploy the ESA Schiaparelli Mars landing demonstration craft and provide communications support for ESA ExoMars Rover and a Russian Lander planned for launch in 2018. (more…)

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NASA Observations Point to ‘Dry Ice’ Snowfall on Mars

PASADENA, Calif. — NASA’s Mars Reconnaissance Orbiter data have given scientists the clearest evidence yet of carbon-dioxide snowfalls on Mars. This reveals the only known example of carbon-dioxide snow falling anywhere in our solar system.

Frozen carbon dioxide, better known as “dry ice,” requires temperatures of about minus 193 degrees Fahrenheit (minus 125 Celsius), which is much colder than needed for freezing water. Carbon-dioxide snow reminds scientists that although some parts of Mars may look quite Earth-like, the Red Planet is very different. The report is being published in the Journal of Geophysical Research. (more…)

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Radar for Mars Gets Flight Tests at NASA Dryden

Southern California’s high desert has been a stand-in for Mars for NASA technology testing many times over the years. And so it is again, in a series of flights by an F/A-18 aircraft to test the landing radar for NASA’s Mars Science Laboratory mission.

The flight profile is designed to have the F/A-18 climb to 40,000 feet (about 12,000 meters). From there, it makes a series of subsonic, stair-step dives at angles of 40 to 90 degrees to simulate what the Mars radar will see while the spacecraft is on a parachute descending through the Martian atmosphere. The F/A-18 pulls out of each dive at 5,000 feet (about 1,500 meters. Data collected by these flights will be used to finesse the Mars landing radar software, to help ensure that it is calibrated as accurately as possible. (more…)

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