Showing posts with label Rover. Show all posts
Showing posts with label Rover. Show all posts

Saturday, July 23, 2011

Mars Science Lab Rover Will Land in Gale Crater

This computer-generated view based on multiple orbital observations shows Mars' Gale crater as if seen from an aircraft northwest of the crater. Image Credit: NASA/JPL-Caltech/ASU/UA

Its official: the Mars Science Laboratory rover, Curiosity, will be landing Gale Crater on Mars. Scientists announced the final decision at a special event at the Smithsonian’s National Air and Space Museum Friday morning. Comparing the terrain to an enticing bowl of layered Neopolitan ice cream, the rover will land at the foot of a layered mountain inside Gale Crater.

“The science at Gale is going to be amazing and it will be a beautiful place to visit,” said Dawn Sumner, a geologist with the MSL team.

MSL is scheduled to launch in November 2011 from NASA’s Kennedy Space Center in Florida and land in August 2012. Curiosity is twice as long and more than five times as heavy as previous as the Mars Exploration rovers Spirit and Opportunity. The rover will study whether the landing region at Gale crater had favorable environmental conditions for supporting microbial life and for preserving clues about whether life ever existed.

News had leaked out a few weeks ago that Gale was the favored site, but scientists today explained what made Gale stand out among the four final candidates, which each offered their own delicious “flavor,” making the decision a difficult one.

NASA has selected Gale crater as the landing site for the Mars Science Laboratory mission. Image Credit: NASA/JPL-Caltech/ASU

“When it comes down to four landing sites, it comes down to what feels right,” said John Grotzinger, Mars Science Laboratory project scientist. “We as a science team, as a community, we got together and in the end we picked the one that felt best. Why? Here, we’ve got mountain of rocks, taller than Mount Whitney. It looks like Hawaii; it’s not a tall spire, but a broad mound. So we can actually climb up this mountain with the rover. That alone justifies sending the spacecraft there. It turns out, though, the most attractive science sites are at the base of the mountain. We can address the principle goals of the things the Mars community would like answers to.”

NASA’s strategy for Mars has been to “follow the water,” since we know that wherever there is water on Earth, there is life. Scientists are hedging their bets on Mars that wherever liquid water once flowed would be the best places to look for evidence of past habitability.

Gale has that going for it.

Gale Crater stratigraphy. Iimage courtesy Matt Golombek.

The portion of the crater where Curiosity will land has an alluvial fan likely formed by water-carried sediments. The layers at the base of the mountain contain clays and sulfates, both known to form in water.
“It’s a huge crater sitting in a very low-elevation position on Mars, and we all know that water runs downhill,” Grotzinger said. “In terms of the total vertical profile exposed and the low elevation, Gale offers attractions similar to Mars’ famous Valles Marineris, the largest canyon in the solar system.”
The scientists emphasized that MSL is not a life detection mission, as it can’t look for fossils. But it can detect organic carbon, which can tell the early environmental story of Mars, found the sediments within rocks.

Gale Crater crater spans 154 kilometers (96 miles) in diameter and is about the combined area of Connecticut and Rhode Island. The mound in the center rises 5 km (3 miles) hight and the Layering in the mound suggests it is the surviving remnant of an extensive sequence of deposits.

The crater is named for Australian astronomer Walter F. Gale.

About the size of a Mini-Cooper, Curiosity has 17 cameras and a full color video camera. The mission should offer incredible vistas that will likely wow the public, beginning with the landing, as Curiosity will take a full color, high definition movie as it descends on the “Sky Crane” landing system.

Anyone else ready for this mission to get going?

Tagged as: Curiosity Rover, Mars, Mars Science Laboratory, Missions


View the original article here

Friday, July 8, 2011

Landing Site for Next Mars Rover Narrowed to Two

Areas within Eberswalde crater (left) and Gale crater (right) are the two finalists for the landing site of NASA's Mars Science Laboratory mission. Credit: NASA

Although a rumor came out about a week and a half ago that Gale Crater was the scientists’ preferred landing site for the Mars Science Laboratory, officially NASA says the finalists are now down to two: Gale and Eberswalde craters. The final selection will likely be made sometime this month, no earlier than July 11. As of now, MSL, a.k.a Curiosity scheduled to head to Mars during a Nov. 25 to Dec. 18, 2011 launch window.

Gale Crater contains ancient lakebed deposits and sitting in the middle of the crater is an enticing 5-kilometer-tall mound of rock, stacked with layers. This could provide the rover a study a variety of environments that produced clay deposits near the mountain’s base to later environments that produced sulfate deposits partway up the slope.

Eberswalde is the site of what scientists think is a former river delta, where organic materials could be waiting to be analyzed. NASA says that as a clay-bearing site where a river once flowed into a lake, Eberswalde crater offers a chance to use knowledge that oil industry geologists have accumulated about where in a delta to look for any concentrations of carbon chemistry, a crucial ingredient for life.
Officially out of the running are Mawrth Vallis and Holden Crater, the other two finalist sites.

The spacecraft will arrive at Mars in August 2012, and land via its unusual “sky crane” landing system. (See a video of it here.) Researchers will use the rover’s 10 science instruments for at least two years to investigate whether the landing area has ever offered environmental conditions favorable for microbial life.

Source: NASA

Tagged as: Mars, Mars Science Laboratory, Missions


View the original article here

Tuesday, June 28, 2011

Dramatic New NASA Animation Depicts Next Mars Rover in Action

NASA's Mars Science Laboratory Curiosity rover
Curiosity is a mobile robot for investigating Mars' past or present ability to sustain microbial life. Curiosity is being tested in preparation for launch in the fall of 2011. The mast, or rover's "head," rises to about 2.1 meters (6.9 feet) above ground level, about as tall as a basketball player. This mast supports two remote-sensing instruments: the Mast Camera, or "eyes," for stereo color viewing of surrounding terrain and material collected by the arm; and, the ChemCam instrument, which is a laser that vaporizes material from rocks up to about 9 meters (30 feet) away and determines what elements the rocks are made of.
Credit: NASA/JPL-Caltech.
New NASA High Resolution Curiosity Animations and Stills below

NASA’s next Mars rover, the Curiosity Mars Science Laboratory, will soon embark on a quantum leap in humankind’s scientific exploration of the Martian surface -the most Earthlike planet in our Solar System.

To get a birds eye understanding of Curiosity’s magnificent capabilities, check out the dramatic new high resolution animation below which depicts NASA’s next Mars rover traversing tantalizing terrain for clues to whether Martian microbial life may have existed, evolved and been sustained in past or present times.

The new action packed animation is 11 minutes in length. It depicts sequences starting with Earth departure, smashing through the Martian atmosphere, the nail biting terror of the never before used rocket-backpack sky crane landing system and then progressing through the assorted science instrument capabilities that Curiosity will bring to bear during its minimum two year expedition across hitherto unseen and unexplored Martian landscapes, mountains and craters.

Curiosity is equipped with 10 science instruments. The three meter long robot is five times the weight of any previous Mars rover.

Those who closely follow the adventures of NASA’s Spirit and Opportunity rovers, like myself, will quickly recognize several of the panoramic scenes which have been included to give a realistic feeling of vistas to expect from the car sized Curiosity rover.

Here is a shorter 4 minute animation with expert narration

Along the way you’ll experience Curiosity zapping rocks with a laser, deftly maneuvering her robotic arm and camera mast and retrieving and analyzing Martian soil samples.

“It is a treat for the 2,000 or more people who have worked on the Mars Science Laboratory during the past eight years to watch these action scenes of the hardware the project has developed and assembled,” said Mars Science Laboratory Project Manager Pete Theisinger at NASA’s Jet Propulsion Laboratory, Pasadena, Calif, in a NASA statement. “The animation also provides an exciting view of this mission for any fan of adventure and exploration.”

Curiosity - The Next Mars Rover analyzes Martian rocks
Curiosity rover examines a rock on Mars with a set of tools at the end of the rover's arm, which extends about 2 meters (7 feet). Two instruments on the arm can study rocks up close. Also, a drill can collect sample material from inside of rocks and a scoop can pick up samples of soil. The arm can sieve the samples and deliver fine powder to instruments inside the rover for thorough analysis. Credit: NASA/JPL-Caltech

Curiosity was flown this week from her birthplace at NASA’s Jet Propulsion Laboratory in California to her future launch site in Florida aboard a C-17 military cargo transport aircraft.

She arrived at the Shuttle Landing Facility (SLF) at the Kennedy Space Center on June 22. The SLF is the same landing strip where I watched the STS-135 crew arrive for NASA’s final shuttle mission just days earlier days for their final launch countdown training.

NASA has scheduled Curiosity to blast off for the red planet on Nov. 25, 2011 from Cape Canaveral Air Force Station aboard an Atlas V rocket. Curiosity will touchdown in August 2012 at a landing site that will be announced soon by Ed Weiler, NASA Associate Administrator for the Science Mission Directorate in Washington, D.C.

Curiosity rover traverses new Martian terrain in search of habitats for microbial life. Credit: NASA/JPL-Caltech

Read my prior features about Curiosity
Packing a Mars Rover for the Trip to Florida; Time Lapse Video
Test Roving NASA’s Curiosity on Earth
Curiosity Mars Rover Almost Complete
Curiosity Rover Testing in Harsh Mars-like Environment

Tagged as: Curiosity, Curiosity Rover, Mars, Mars Rovers, NASA, Opportunity Rover, Search for Life, Spirit Rover


View the original article here

Thursday, June 23, 2011

Packing a Mars Rover for the Trip to Florida; Time Lapse Video

Check out this way cool time-lapse movie of NASA’s Curiosity Mars rover as its being packed up for her trip to Florida.

The video covers a 4 day period from June 13 to 17 and is condensed to just 1 minute. Watch the JPL engineers and technicians prepare Curiosity and the descent stage for shipping to the Kennedy Space Center in Florida and place it inside a large protective shipping container.

The rover and descent stage will be delivered to the Payload Hazardous Servicing Facility at KSC is the next stop for Curiosity on its way to Destination Mars. Curiosity will be shipped to Florida in the next few days. The facility is used for NASA landers subject to the most stringent planetary protection requirements.

Curiosity will be delivered to a high tech cleanroom at KSC. After arriving, the rover will undergo a wide ranging series of flight system checks to insure the rover is ready to rove on the red planet and that it survived the shipping across the US. Also, installation of the final few components including the RTG power source will be completed.

The launch window for Curiosity open on November 25. The rover will blast to space atop a powerful Atlas V rocket from Launch Complex 41 at Cape Canaveral Air Force Station, Florida.

Curiosity is larger than Spirit and Opportunity, measuring some three meters long and equipped with a much more powerful array of science instruments. Curiosity will search for environmental conditions that could have been conducive to supporting martian life – in the past or present – if it ever even existed.


View the original article here