NASA Testing a Space Rover Under Alaskan Ice.Video.

Francisco De Jesús.

 In a first time success, NASA remote pilots a roving, untethered vehicle under Alaska's ice . It's a milestone in a quest to develope an unmanned vehicle that couldone day plumb the icy reaches of Jupiter's moon Europa.

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Curiosity's First Track Marks on Mars. Video: First drive celebration.

WorldWide Tech & Science. Francisco De Jesùs.

Curiosity's First Track Marks on Mars. Video: First drive celebration.

Curiosity's First Track Marks on Mars.

This 360-degree panorama shows evidence of a successful first test drive for NASA's Curiosity rover. On Aug. 22, 2012, the rover made its first move, going forward about 15 feet (4.5 meters), rotating 120 degrees and then reversing about 8 feet (2.5 meters). Curiosity is about 20 feet (6 meters) from its landing site, now named Bradbury Landing. 

Visible in the image are the rover's first track marks. A small 3.5-inch (9-centimeter) rock can be seen where the drive began, which engineers say was partially under one of the rear wheels. Scour marks left by the rover's descent stage during landing can be seen to the left and right of the wheel tracks. The lower slopes of Mount Sharp are visible at the top of the picture, near the center. 

This mosaic from the rover's Navigation camera is made up of 23 full-resolution frames, displayed in a cylindrical projection. 

Image credit: NASA/JPL-Caltech 

 VIDEO:

Curiosity: First Drive Celebration

Team members celebrate in JPL's Curiosity Surface Mission Support Area when images are received confirming Curiosity's first drive on Mars on Aug. 22, 2012. 

WorldWide Tech & Science. Francisco De Jesùs.

NASA releases video and color photo,of Mars rover landing.

NASA has released a low resolution video of the Curiosity Rover during the final few minutes of its decent to the Martian surface . Video silent.

Curiosity snaps the first color view of the north wall and rim of Gale Crater, where NASA's Mars rover landed Sunday night. The picture was taken by the rover's camera at the end of its stowed robotic arm and appears fuzzy because of dust on the camera's cover.

The color photo from the ancient crater where Curiosity landed showed a pebbly landscape and the rim of Gale Crater off in the distance. Curiosity snapped the photo on the first day on the surface after touching down on Mars Sunday night.

The rover took the shot with a camera at the end of its robotic arm, which remained stowed. The landscape looked fuzzy because the camera's removable cover was coated with dust that kicked up during the descent to the ground.

NASA celebrated the precision landing of a rover on Mars and marveled over the mission's flurry of photographs — grainy, black-and-white images of Martian gravel, a mountain at sunset and, most exciting of all, the spacecraft's plunge through the red planet's atmosphere.

Curiosity, a roving laboratory the size of a compact car, landed right on target late Sunday after an eight-month, 352-million-mile journey. It parked its six wheels about four miles from its ultimate science destination — Mount Sharp, rising from the floor of Gale Crater near the equator.

Extraordinary efforts were needed for the landing because the rover weighs one ton, and the thin Martian atmosphere offers little friction to slow down a spacecraft. Curiosity had to go from 13,000 mph to zero in seven minutes, unfurling a parachute, then firing rockets to brake. In a Hollywood-style finish, cables delicately lowered it to the ground at 2 mph.

At the end of what NASA called "seven minutes of terror," the vehicle settled into place almost perfectly flat in the crater it was aiming for.

"We have ended one phase of the mission much to our enjoyment," mission manager Mike Watkins said. "But another part has just begun."

The nuclear-powered Curiosity will dig into the Martian surface to analyze what's there and hunt for some of the molecular building blocks of life, including carbon.

It won't start moving for a couple of weeks, because all the systems on the $2.5 billion rover have to be checked out. Color photos and panoramas will start coming in the next few days.

But first NASA had to use tiny cameras designed to spot hazards in front of Curiosity's wheels. So early images of gravel and shadows abounded. The pictures were fuzzy, but scientists were delighted.

The photos show "a new Mars we have never seen before," Watkins said. "So every one of those pictures is the most beautiful picture I have ever seen."

In one of the photos from the close-to-the-ground hazard cameras, if you squinted and looked the right way, you could see "a silhouette of Mount Sharp in the setting sun," said an excited John Grotzinger, chief mission scientist from the California Institute of Technology.

A high-resolution camera on the orbiting 7-year-old Mars Reconnaissance Orbiter, flying 211 miles directly above the plummeting Curiosity, snapped a photo of the rover dangling from its parachute about a minute from touchdown. The parachute's design can be made out in the photo.

"It's just mind-boggling to me," said Miguel San Martin, chief engineer for the landing team.

Curiosity is the heaviest piece of machinery NASA has landed on Mars, and the success gave the space agency confidence that it can unload equipment that astronauts may need in a future manned trip to the red planet.

The landing technique was hatched in 1999 in the wake of devastating back-to-back Mars spacecraft losses. Back then, engineers had no clue how to land super-heavy spacecraft. They brainstormed different possibilities, consulting Apollo-era engineers and pilots of heavy-lift helicopters.

"I think its engineering at its finest. What engineers do is they make the impossible possible," said former NASA chief technologist Bobby Braun. "This thing is elegant. People say it looks crazy. Each system was designed for a very specific function."

Because of budget constraints, NASA canceled its joint U.S.-European missions to Mars, scheduled for 2016 and 2018.

"When's the next lander on Mars? The answer to that is nobody knows," Bolden said in a recent interview with The Associated Press.

But if Curiosity finds something interesting, he said, it could spur the public and Congress to provide more money for more Martian exploration. No matter what, he said, Curiosity's mission will help NASA as it tries to send astronauts to Mars by the mid-2030s.

NASA Video: Mars Science Laboratory Launch

WorldWide Tech & SCience. Francisco De Jesús.

NASA began a historic voyage to Mars with the Nov. 26 launch of the Mars Science Laboratory, which carries a car-sized rover named Curiosity. Liftoff from Cape Canaveral Air Force Station aboard an Atlas V rocket occurred at 10:02 a.m. EST (7:02 a.m. PST).

The Curiosity rover has 10 science instruments to search for evidence about whether Mars had environments favorable for microbial life, including the chemical ingredients for life. The rover will use a laser to look inside rocks and release their gasses so its spectrometer can analyze and send the data back to Earth. The latest online information on the Mars Science Laboratory mission is at: http://www.nasa.gov/msl . JPL, a division of the California Institute of Technology in Pasadena, manages the mission for NASA.

  

 "We are very excited about sending the world's most advanced scientific laboratory to Mars," NASA Administrator Charles Bolden said. "MSL will tell us critical things we need to know about Mars, and while it advances science, we'll be working on the capabilities for a human mission to the Red Planet and to other destinations where we've never been."

The mission will pioneer precision landing technology and a sky-crane touchdown to place Curiosity near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life.

"The launch vehicle has given us a great injection into our trajectory, and we're on our way to Mars," said Mars Science Laboratory Project Manager Peter Theisinger of NASA's Jet Propulsion Laboratory in Pasadena, Calif. "The spacecraft is in communication, thermally stable and power positive."

The Atlas V initially lofted the spacecraft into Earth orbit and then, with a second burst from the vehicle's upper stage, pushed it out of Earth orbit into a 352-million-mile (567-million-kilometer) journey to Mars.

"Our first trajectory correction maneuver will be in about two weeks," Theisinger said. "We'll do instrument checkouts in the next several weeks and continue with thorough preparations for the landing on Mars and operations on the surface."

Curiosity's ambitious science goals are among the mission's many differences from earlier Mars rovers. It will use a drill and scoop at the end of its robotic arm to gather soil and powdered samples of rock interiors, then sieve and parcel out these samples into analytical laboratory instruments inside the rover. Curiosity carries 10 science instruments with a total mass 15 times as large as the science-instrument 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 the elemental composition of rocks from a distance, and an X-ray diffraction instrument for definitive identification of minerals in powdered samples.

To haul and wield its science payload, Curiosity is twice as long and five times as heavy as Spirit or Opportunity. Because of its one-ton mass, Curiosity is too heavy to employ airbags to cushion its landing as previous Mars rovers could. Part of the Mars Science Laboratory spacecraft is a rocket-powered descent stage that will lower the rover on tethers as the rocket engines control the speed of descent.

The mission's landing site offers Curiosity access for driving to layers of the mountain inside Gale Crater. Observations from orbit have identified clay and sulfate minerals in the lower layers, indicating a wet history.

Precision landing maneuvers as the spacecraft flies through the Martian atmosphere before opening its parachute make Gale a safe target for the first time. This innovation shrinks the target area to less than one-fourth the size of earlier Mars landing targets. Without it, rough terrain at the edges of Curiosity's target would make the site unacceptably hazardous.

The innovations for landing a heavier spacecraft with greater precision are steps in technology development for human Mars missions. In addition, Curiosity carries an instrument for monitoring the natural radiation environment on Mars, important information for designing human Mars missions that protect astronauts' health.

The mission is managed by JPL, a division of the California Institute of Technology in Pasadena, for NASA's Science Mission Directorate in Washington. The rover was designed, developed and assembled at JPL. NASA's Launch Services Program at the Kennedy Space Center in Florida managed the launch. NASA's Space Network provided space communication services for the launch vehicle. NASA's Deep Space Network will provide spacecraft acquisition and mission communication.  

Source: NASA