Showing posts with label CURIOSITY. Show all posts
Showing posts with label CURIOSITY. Show all posts

Thursday, August 21, 2014

THE 'BONANZA KING' OF MARS

FROM:  NASA 


The pale rocks in the foreground of this fisheye image from NASA's Curiosity Mars rover include the "Bonanza King" target under consideration to become the fourth rock drilled by the Mars Science Laboratory mission.  No previous mission has collected sample material from the interior of rocks on Mars. Curiosity delivers the drilled rock powder into analytical laboratory instruments inside the rover. Curiosity's front Hazard Avoidance Camera (Hazcam), which has a very wide-angle lens, recorded this view on Aug. 14, 2014, during the 719th Martian day, or sol, of the rover's work on Mars.  The view faces southward, looking down a ramp at the northeastern end of sandy-floored "Hidden Valley." Wheel tracks show where Curiosity drove into the valley, and back out again, earlier in August 2014.  The largest of the individual flat rocks in the foreground are a few inches (several centimeters) across.  For scale, the rover's left front wheel, visible at left, is 20 inches (0.5 meter) in diameter. A map showing Hidden Valley is at http://photojournal.jpl.nasa.gov/catalog/PIA18408 . NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, manages the Mars Science Laboratory Project for NASA's Science Mission Directorate, Washington. JPL designed and built the project's Curiosity rover and the rover's Navcam. Image Credit: NASA/JPL-Caltech

Saturday, August 25, 2012

CURIOSITY CHRONICLES BRADBURY LANDING SITE


FROM: NASA

NASA Mars Rover Begins Driving at Bradbury Landing

PASADENA, Calif. -- NASA's Mars rover Curiosity has begun driving from its landing site, which scientists announced today they have named for the late author Ray Bradbury.

Making its first movement on the Martian surface, Curiosity's drive combined forward, turn and reverse segments. This placed the rover roughly 20 feet (6 meters) from the spot where it landed 16 days ago.

NASA has approved the Curiosity science team's choice to name the landing ground for the influential author who was born 92 years ago today and died this year. The location where Curiosity touched down is now called Bradbury Landing.

"This was not a difficult choice for the science team," said Michael Meyer, NASA program scientist for Curiosity. "Many of us and millions of other readers were inspired in our lives by stories Ray Bradbury wrote to dream of the possibility of life on Mars."

Today's drive confirmed the health of Curiosity's mobility system and produced the rover's first wheel tracks on Mars, documented in images taken after the drive. During a news conference today at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif., the mission's lead rover driver, Matt Heverly, showed an animation derived from visualization software used for planning the first drive.

"We have a fully functioning mobility system with lots of amazing exploration ahead," Heverly said.

Curiosity will spend several more days of working beside Bradbury Landing, performing instrument checks and studying the surroundings, before embarking toward its first driving destination approximately 1,300 feet (400 meters) to the east-southeast.

"Curiosity is a much more complex vehicle than earlier Mars rovers. The testing and characterization activities during the initial weeks of the mission lay important groundwork for operating our precious national resource with appropriate care," said Curiosity Project Manager Pete Theisinger of JPL. "Sixteen days in, we are making excellent progress."

The science team has begun pointing instruments on the rover's mast for investigating specific targets of interest near and far. The Chemistry and Camera (ChemCam) instrument used a laser and spectrometers this week to examine the composition of rocks exposed when the spacecraft's landing engines blew away several inches of overlying material.

The instrument's principal investigator, Roger Weins of Los Alamos National Laboratory in New Mexico, reported that measurements made on the rocks in this scoured-out feature called Goulburn suggest a basaltic composition. "These may be pieces of basalt within a sedimentary deposit," Weins said.

Curiosity began a two-year prime mission on Mars when the Mars Science Laboratory spacecraft delivered the car-size rover to its landing target inside Gale Crater on Aug. 5 PDT (Aug. 6 EDT). The mission will use 10 science instruments on the rover to assess whether the area has ever offered environmental conditions favorable for microbial life.

In a career spanning more than 70 years, Ray Bradbury inspired generations of readers to dream, think and create. A prolific author of hundreds of short stories and nearly to 50 books, as well as numerous poems, essays, operas, plays, teleplays, and screenplays, Bradbury was one of the most celebrated writers of our time.

His groundbreaking works include "Fahrenheit 451," "The Martian Chronicles," "The Illustrated Man," "Dandelion Wine," and "Something Wicked This Way Comes." He wrote the screenplay for John Huston's classic film adaptation of "Moby Dick," and was nominated for an Academy Award. He adapted 65 of his stories for television's "The Ray Bradbury Theater," and won an Emmy for his teleplay of "The Halloween Tree."

JPL manages the Mars Science Laboratory/Curiosity for NASA's Science Mission Directorate in Washington. The rover was designed, developed and assembled at JPL.

Monday, August 6, 2012

CURIOSITY REPORT AFTER LANDING ON MARS

FROM: NASA
NASA's most advanced Mars rover, Curiosity, has landed on the Red Planet. The one-ton rover, hanging by ropes from a rocket backpack, touched down onto Mars early Monday EDT to end a 36-week flight and begin a two-year investigation. President Obama said the landing "will stand as a point of national pride far into the future."
After seven dramatic minutes of entry, descent, and landing, everyone will want to know: did Curiosity survive? There’s a possibility we won’t know. At least not right away.

During its descent through the atmosphere, Curiosity must switch to a new antenna for each transformation it makes. At each switch, we could lose lock on the signal for a short time. That won’t hurt the rover. It just means we won’t know what’s happening right way.

Even with a solid signal, the communications link direct to Earth only works during the first half of the rover’s descent. Why? Like Earth, Mars is spinning – and during landing, Curiosity and its landing site will disappear from view, like the sun setting.

Out of sight equals the end of direct radio contact.

BUT…NASA has two spacecraft orbiting Mars that can help.

For the second half of Curiosity’s descent, the Mars Odyssey orbiter is in a good place to pick up the rover’s signal and send it right back to Earth. To best hear Curiosity’s signal, Odyssey must rotate about an hour before landing.

That sounds easy, but engineers are asking Odyssey to perform a maneuver it’s never tried before. Will it work? Probably. But it’s not a sure thing.

If Odyssey doesn’t rotate successfully, never fear! The rover won’t be affected whatsoever! Once again, it just means we have to wait longer to hear from the rover.

Odyssey could perform as hoped, but we’re still not home free! Engineers always think of ‘what ifs.’ For instance, what if the rover lands on a slope? If so, the low flying Odyssey orbiter might not be able to pick up its signal.

Even if everything goes according to plan with Odyssey, there’s a final challenge: time. The rover may be standing safe on Mars, but Odyssey has to be quick in getting the signal. Odyssey is moving fast. It will only be in the line of sight to hear from the rover for a few minutes--perhaps no more than 5.

So the Mars Reconnaissance Orbiter plays the role of backup. It will also fly overhead to capture what happens and then store the landing data it collects onboard, for playback to Earth a few hours later. Engineers then have to decode the data, which takes several hours.

Sometime in the middle of the night for Curiosity’s mission team, it’s possible that the orbiter could tell us the rover’s fate.

Or, there are other scenarios where the rover might be perfectly safe, but we might not hear from it for three days.

That’s all to say: Curiosity’s landing is filled with drama and we’ll need lots of patience. No wonder they call this ‘rocket science.’


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Saturday, August 4, 2012

CURIOSITY GOES TO MARS

Curiosity and Descent Stage, Artist's Concept NASA, CAL-TECH
FROM: LOS ALAMOS NATIONAL LABORATORY
Bradbury Science Museum Gets Martian Fever!
Public invited to Curiosity rover landing party Sunday night at new Mars exhibit
LOS ALAMOS, NEW MEXICO, July 31, 2012—Curious about Curiosity, the SUV-sized rover scheduled to touch down on Mars on Sunday? Then come on down to an opening party for a new exhibit about it this Sunday at the Bradbury Science Museum in Los Alamos.

The public is invited to a special opening reception beginning at 10 p.m. Sunday (August 5, 2012) to celebrate Los Alamos National Laboratory technologies aboard the six-wheeled mobile science laboratory. The Curiosity rover, the centerpiece of NASA’s Mars Science Laboratory mission, is scheduled to touch down on the Red Planet Sunday at 11:31 p.m. local (Mountain Daylight) time. The museum plans to show the landing via NASA TV live that evening.

While waiting for the nail-biting news about the successful landing of the Curiosity rover, visitors to the new museum exhibit can learn about LANL technologies on board, view a nearly life-sized 3-dimensional stereo poster of Curiosity, and use their iPhone or iPad to interact with it. Light refreshments will be served.

"This is an exhibit about LANL technology on Mars. We’re really excited to showcase LANL’s scientific and technologic expertise while also providing an educational and fun experience for the public," said Bradbury Science Museum Director Linda Deck. "We’ve been thinking about this for months and intensely working on it about four weeks," she said, adding that the exhibit will remain in place indefinitely in the museum’s TechLab.

Museum visitors will find display models of ChemCam—the rock-zapping laser that will help characterize Martian geology—CheMin, which uses X-ray diffraction to determine the composition of mineral samples collected and dropped into a funnel on the Curiosity rover; and simulated radioisotope thermoelectric generators (RTGs), the tiny plutonium canisters that provide heat and power sources that give Curiosity several times as much electricity as previous-generation rovers—a necessity for the much larger and more-advanced payload on Curiosity.

Friday, August 3, 2012

IN SEARCH OF MARTIANS




FROM:  NASA
Curiosity Bound for Mars

NASA's Mars Science Laboratory spacecraft, sealed inside its payload fairing atop the United Launch Alliance Atlas V rocket, clears the tower at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida.The mission lifted off at 10:02 a.m. EST (7:02 a.m. PST), Nov. 26, beginning an eight-month interplanetary cruise to Mars.

The spacecraft's components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane
Image credit: United Launch Alliance
Landing Aug. 5, 2012

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