science

COCOA BEACH, Fla.--Bolted to the back of a 747 jumbo jet, the space shuttle Endeavour took off on its final voyage this morning, a "bittersweet" valedictory tour highlighted by low-altitude passes over NASA field centers, towns and cities along the way to museum duty in Los Angeles, giving the public one last chance to see the winged spaceplane in flight.

Running two days late because of stormy weather along the Gulf Coast, the NASA 747 and its 78-ton payload lifted off the Kennedy Space Center's 3-mile-long shuttle runway at 7:22 a.m. ET, following a … Read more

KENNEDY SPACE CENTER, Fla.--The space shuttle Endeavour, veteran of 25 trips to orbit since its maiden launch two decades ago, was prepped today for takeoff on its final flight tomorrow, a cross-country tour atop a NASA 747 transport jet that will give the public one last chance to see the iconic spaceplane in flight before landing in Los Angeles Friday for work to ready the ship for museum duty.

Running two days late because of stormy weather along the Gulf Coast, Endeavour and its carrier jet are scheduled for takeoff from the Kennedy Space Center's 3-mile-long shuttle runway … Read more

Engineers testing the Curiosity Mars rover are wrapping up a series of robot arm calibration and motion tests before resuming a slow trek toward a nearby rock formation this weekend, on the lookout for a suitable stone to reach out and touch in an initial round of "contact science," officials said today.

The goal is to make sure the arm can precisely position a sensitive camera and an X-ray spectrometer as required for "hands on" geological observations, including eventual operations with a sample scoop and a compact drill. With the tests nearly complete, the arm has … Read more

When Curiosity touched down on Mars earlier this month, we Earthlings experienced an out of this world multimedia experience showing off amazing angles of the Red Planet. A few days ago, NASA released perhaps the best Mars panorama yet, which simply blows away the rest, at least in terms of size. … Read more

NASA's Curiosity rover, giving earthlings a glimpse of its ultimate target, has beamed back spectacular high-resolution photos of the rugged foothills of Mount Sharp, showing a khaki-colored landscape marked by towering hills, gaping canyons, and sand dunes reminiscent of the American Southwest, scientists said Monday.

In one view, the rover photographed a scientifically intriguing transition from relatively flat rock beds made up of water-influenced minerals to steeply inclined unhydrated layers marking a dramatic, geologically sudden discontinuity that signals a major change in martian history.

But for sheer visual impact, it was a zoomed-in view of the Mount Sharp foothills … Read more

In a major milestone, the six-wheel Curiosity Mars rover took its first baby steps today, rolling about 15 feet forward, performing a slow 120-degree pirouette, and then backing up 8 feet to prove the $2.5 billion science lab is, in fact, mobile -- and ready to rove.

The short test drive began at 7:17 a.m. PT and took about 16 minutes to complete. The actual drive time was about a third of that, but the rover was programmed to stop and take multiple pictures of its tracks in the dusty, pebble-strewn soil of Gale Crater.

The move … Read more

With a broken wind sensor the only problem of any note aboard the Curiosity Mars rover, engineers plan to uplink commands overnight for an initial test drive, a short 10-foot move and a turning reverse maneuver to check out the robotic science lab's ability to roam its Gale Crater landing site, project managers said today.

In two major milestones, engineers successfully tested the six-wheeled rover's steering system, commanding the four corner wheels to turn in place, and erected the lab's complex 7-foot-long robot arm and tool turret to test the appendage's drive motors and joints.

"… Read more

When the Curiosity rover landed on Mars earlier this month, the world couldn't get enough of the six-wheeled dynamo.

Mass adoration for the roving Martian also successfully propelled a pet project by mechanical engineer Stephen Pakbaz, who submitted a miniature version of the Mars Science Laboratory Curiosity rover last November to Cuusoo, a site officially created by Lego that lets fans vote on brick-based concepts (similar to Kickstarter). If a proposition gets 10,000 votes, then "a Lego jury evaluates the idea's feasibility as a product and makes a decision." … Read more

The Curiosity rover successfully test fired a powerful laser at a nearby rock Sunday, blasting it with rapid-fire million-watt pulses that vaporized the outer layers for spectroscopic analysis.

The Chemistry and Camera instrument, known as ChemCam, hit the target rock, dubbed "Coronation," with 30 pulses of laser light over 10 seconds, according to a NASA update. Each pulse lasted about five one-billionths of a second.

The laser beam created a visible spark of electrically charged plasma that was then observed by the instrument's telescope. The telescope, mounted on Curiosity's camera mast, fed the light through optical … Read more