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Mission Success for MSL Entry, Descent, and Landing Instrument (MEDLI)
by Rick Smith
Greenbelt MD (SPX) Aug 07, 2012

MEDLI is one of NASA's Technology Demonstration Missions - a series of advanced technology projects designed to validate and mature laboratory-proven technologies to flight-ready status, reducing costs and aiding our boldest missions of exploration and scientific discovery. To learn more about MEDLI, watch this NASA video.

Mission success for the MSL Entry, Descent, and Landing Instrument (MEDLI) Suite. When the Curiosity rover touched down on the red planet Aug. 6 at 12:32 p.m. CDT, NASA MEDLI researchers were already cheering.

The instrumentation payload, carried in the entry vehicle's heatshield, included an intricate array of sophisticated engineering sensors designed to measure heat, pressure and other conditions impacting the heatshield during atmospheric entry and descent. The shield is jettisoned prior to landing.

The MEDLI suite powered up successfully Aug. 5 during the Mars Science Laboratory's approach to Earth's nearest planetary neighbor. About an hour before entry, descent and landing, the sensor suite's temperature stabilized at minus-20 degrees Fahrenheit, readying MEDLI for its journey through Mars' atmosphere.

Real-time streaming data from the shield sensors was acquired through much of the vehicle's entry and descent - barring the brief UHF-frequency communications blackout upon entry - until Curiosity deployed its parachutes and jettisoned its heatshield. The rover touched down smoothly in Gale Crater to begin its two-year primary mission.

Only about 10 percent of MEDLI's data is now in the hands of the research team; the rest will be relayed by the Mars lander in coming days, and will be analyzed and published in the weeks and months ahead. The team's findings will help NASA engineers design safer, more efficient entry systems for future missions to Mars and other destinations - missions carrying human crews as well as robotic explorers such as Curiosity.

MEDLI is one of NASA's Technology Demonstration Missions - a series of advanced technology projects designed to validate and mature laboratory-proven technologies to flight-ready status, reducing costs and aiding our boldest missions of exploration and scientific discovery. To learn more about MEDLI, watch this NASA video.

MEDLI was designed and developed by NASA's Langley Research Center in Hampton, Va., in partnership with NASA's Ames Research Center in Moffett Field, Calif., and NASA's Jet Propulsion Laboratory in Pasadena, Calif. The project is supported by NASA's Aeronautics Research Mission Directorate and NASA's Human Exploration and Operations Mission Directorate.

The Technology Demonstration Missions program is sponsored by NASA's Office of the Chief Technologist, managed for the agency by the Marshall Space Flight Center and supported by NASA field centers and partner facilities around the nation.

Related Links
Mars Science Laboratory
Marshall Space Flight Center
Mars News and Information at MarsDaily.com
Lunar Dreams and more




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Paris (ESA) Aug 07, 2012
This morning at 7:14 CEST, ESA's Mars Express acquired signals from NASA's Mars Science Laboratory as it delivered the car-sized Curiosity rover onto the Red planet's surface. ESA's New Norcia tracking station also picked up signals directly from the NASA mission, 248 million km away at Mars. A key step was completed today in ESA's ongoing support to NASA's Mars Science Laboratory (MSL) mi ... read more


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