'7 minutes' of a different kind: Mars Rover landing captured in low-res video
The images and video of the rover's descent into Mars are grainy due to compression, but NASA expects better quality media in a few weeks.
Tue, Aug 07 2012 at 10:43 AM
This color thumbnail image was obtained by NASA's Curiosity rover during its descent to the surface of Mars on Aug. 6. It features the heat shield when it was about 50 feet (16 meters) from the spacecraft. (Photo: NASA/JPL-Caltech/MSSS)
PASADENA, Calif. — A stunning new video shot by NASA's Mars rover Curiosity captures the huge robot's nail-biting journey to the Red Planet's surface on Aug. 5.
The Curiosity rover's landing video was taken by the Mars Descent Imager camera, or MARDI, snapped about 660 photos while the six-wheeled robot was barreling through the Martian atmosphere during its "seven minutes of terror" landing attempt late Sunday night (Aug. 5 PDT; Aug. 6 EDT).
The rover team combined 297 of these shots into a 1-minute video that shows some of the unprecedented descent's most dramatic moments. Highlights include the separation of Curiosity from its heat shield, and billowing dust clouds raised as the rover's rocket-powered sky crane — which lowered Curiosity to the ground on cables — neared the Martian surface.
One of the images was taken 2.5 minutes before Curiosity touched down on the surface of Mars, and the heat shield is seen in the frame, falling away from the spacecraft. According to Malin, this photo was taken about three seconds after the heat shield separated. It is among the first color images Curiosity sent back from Mars, NASA officials said.
The video of Curiosity's descent is a bit fuzzy, because the MARDI images were compressed substantially before Curiosity sent them back to Earth. The full-resolution photos should be spectacular, but they'll take a while to trickle in, said MARDI principal investigator Mike Malin. [Gallery: Mars Rover Curiosity Landing Success ]
"That video would be just exquisite in full frame," Malin, of Malin Space Science Systems in San Diego, told reporters here at NASA's Jet Propulsion Laboratory on Aug. 6. "It'll be a couple of weeks before we really start having the pieces for it."
MARDI, which sits on the bottom of the rover's body and faces downward, is one of Curiosity's 17 cameras. Its main job was to take footage of the rover's descent to its landing site — the 96-mile-wide (154-kilometer) Gale Crater — to give the mission team a bird's-eye view of the terrain Curiosity will explore.
Curiosity is the heart of NASA's $2.5 billion Mars Science Laboratory mission (MSL), which seeks to determine if the Red Planet can, or ever could, support microbial life.
The rover has also already beamed home images taken by some of its other cameras. For example, a shot snapped by one of the rover's eight Hazard Avoidance Cameras, or Hazcams, shows Gale and its mysterious central mound, the 3-mile-high (5-kilometer) Mount Sharp.
MSL scientists plan to send Curiosity partway up Mount Sharp, to study the many layers of rock that hold a record of perhaps a billion years of changing environmental condtitions on Mars.
However, the car-size rover is not ready to tackle Mount Sharp's slopes quite yet. The mission team will spend the next few months checking out Curiosity's systems and 10 science instruments, which will be gathering data all the while.
Curiosity probably won't start driving for the first time for a few weeks, and it likely won't begin its trek toward Mount Sharp for another two or three months, mission managers have said.
Visit SPACE.com for complete coverage of NASA's Mars rover landing. Follow senior writer Mike Wall on Twitter @michaeldwall or SPACE.com @Spacedotcom. We're also on Facebook and Google+.
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