Thursday, 30 August 2012
On Aug. 28, 2012, during the 22nd Martian day, or sol, after landing on Mars, NASA's Curiosity rover drove about 52 feet (16 meters) eastward, the longest drive of the mission so far. The drive imprinted the wheel tracks visible in this image. The rover's rear Hazard Avoidance Camera (Hazcam) took the image after the drive. Curiosity's front and rear Hazcams have fisheye lenses for enabling the rover to see a wide swath of terrain. This image has been processed to straighten the horizon.
(Image credit: NASA/JPL-Caltech)
Tuesday, 28 August 2012
|Mars Rover Curiosity in Artist's Concept|
(Image courtesy of NASA)
Bolden's recorded message was released along with new telephoto camera views of the varied Martian landscape during a news conference today at NASA's Jet Propulsion Laboratory (JPL), Pasadena, California. "With this voice, another small step is taken in extending human presence beyond Earth, and the experience of exploring remote worlds is brought a little closer to us all," said Dave Lavery, NASA Curiosity program executive. "As Curiosity continues its mission, we hope these words will be an inspiration to someone alive today who will become the first to stand upon the surface of Mars. And like the great Neil Armstrong, they will speak aloud of that next giant leap in human exploration."
The telephoto images beamed back to Earth show a scene of eroded knobs and gulches on a mountainside, with geological layering clearly exposed. The new views were taken by the 100-millimeter telephoto lens and the 34-milllimeter wide angle lens of the Mast Camera (Mastcam) instrument. Mastcam has photographed the lower slope of the nearby mountain called Mount Sharp.
"This is an area on Mount Sharp where Curiosity will go," said Mastcam principal investigator Michael Malin, of Malin Space Science Systems in San Diego. "Those layers are our ultimate objective. The dark dune field is between us and those layers. In front of the dark sand you see redder sand, with a different composition suggested by its different color. The rocks in the foreground show diversity -- some rounded, some angular, with different histories. This is a very rich geological site to look at and eventually to drive through."
A drive early Monday placed Curiosity directly over a patch where one of the spacecraft's landing engines scoured away a few inches of gravelly soil and exposed underlying rock. Researchers plan to use a neutron-shooting instrument on the rover to check for water molecules bound into minerals at this partially excavated target.
During the news conference, the rover team reported the results of a test on Curiosity's Sample Analysis at Mars (SAM) instrument, which can measure the composition of samples of atmosphere, powdered rock or soil. The amount of air from Earth's atmosphere remaining in the instrument after Curiosity's launch was more than expected, so a difference in pressure on either side of tiny pumps led SAM operators to stop pumping out the remaining Earth air as a precaution. The pumps subsequently worked, and a chemical analysis was completed on a sample of Earth air.
"As a test of the instrument, the results are beautiful confirmation of the sensitivities for identifying the gases present," said SAM principal investigator Paul Mahaffy of NASA's Goddard Space Flight Center. "We're happy with this test and we're looking forward to the next run in a few days when we can get Mars data."
Curiosity already is returning more data from the Martian surface than have all of NASA's earlier rovers combined. "We have an international network of telecommunications relay orbiters bringing data back from Curiosity," said JPL's Chad Edwards, chief telecommunications engineer for NASA's Mars Exploration Program. "Curiosity is boosting its data return by using a new capability for adjusting its transmission rate."
Curiosity is 3 weeks into a two-year prime mission on Mars. It will use 10 science instruments to assess whether the selected study area ever has offered environmental conditions favorable for microbial life.
Sunday, 26 August 2012
NASA Administrator Statement on Neil Armstrong's Death:
WASHINGTON -- The following is a statement from NASA Administrator Charles Bolden regarding the death of former test pilot and NASA astronaut Neil Armstrong. He was 82.
"On behalf of the entire NASA family, I would like to express my deepest condolences to Carol and the rest of the Armstrong family on the passing of Neil Armstrong. As long as there are history books, Neil Armstrong will be included in them, remembered for taking humankind's first small step on a world beyond our own.
"Besides being one of America's greatest explorers, Neil carried himself with a grace and humility that was an example to us all. When President Kennedy challenged the nation to send a human to the moon, Neil Armstrong accepted without reservation.
"As we enter this next era of space exploration, we do so standing on the shoulders of Neil Armstrong. We mourn the passing of a friend, fellow astronaut and true American hero."