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Looking Up – Bob Eklund

Image from Curiosity showing Mt. Sharp

CURIOSITY ROVER CAUGHT IN THE ACT OF LANDING – An image from the High Resolution Imaging Science Experiment (HiRISE) camera aboard NASA’s Mars Reconnaissance Orbiter (MRO) captured the Curiosity rover still connected to its 51-foot-wide parachute as it descended towards its landing site at Gale Crater.

“If HiRISE had taken the image one second before or one second after, we probably would be looking at an empty Martian landscape,” said Sarah Milkovich, HiRISE investigation scientist at JPL. “When you consider that we have been working on this sequence since March and had to upload commands to the spacecraft about 72 hours prior to the image being taken, you begin to realize how challenging this picture was to obtain.”

The image was taken while MRO was 211 miles away from the parachuting rover. Curiosity and its

Curiosity with it's parachute

rocket-propelled backpack, contained within the conical-shaped back shell, had yet to be deployed. At the time, Curiosity was about two miles above the Martian surface.

“Guess you could consider us the closest thing to paparazzi on Mars,” said Milkovich. “We definitely caught NASA’s newest celebrity in the act.”

The rover Curiosity, NASA’s latest contribution to the Martian landscape, landed at 10:32 p.m. Aug. 5, PDT (1:32 a.m. Aug. 6, EDT) near the foot of a mountain three miles tall inside Gale Crater, 96 miles in diameter.

In other Curiosity news, one part of the rover team at the JPL continues to analyze the data from the landing while another continues to prepare the one-ton mobile laboratory for its future explorations of Gale Crater. One key assignment given to Curiosity for its first full day on Mars was to raise its high-gain antenna. Using this antenna will increase the data rate at which the rover can communicate directly with Earth. The mission will use relays to orbiters as the primary method for sending data home, because that method is much more energy-efficient for the rover.

Curiosity carries 10 science instruments with a total mass 15 times as large as the science payloads on the Mars rovers Spirit and Opportunity. Some of the tools are the first of their kind on Mars, such as a laser-firing instrument for checking rocks’ elemental composition from a distance. Later in the mission, the rover will use a drill and scoop at the end of its robotic arm to gather soil and powdered samples of rock interiors, then sift and parcel out these samples into analytical laboratory instruments inside the rover.

To handle this science toolkit, Curiosity is twice as long and five times as heavy as Spirit or Opportunity. The Gale Crater landing site places the rover within driving distance to layers of the crater’s interior mountain. Observations from orbit have identified clay and sulfate minerals in the lower layers, indicating a wet history.

 

 

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