1. Headline
  1. Headline
Image: Curiosity rover
NASA / JPL-Caltech / MSSS
A mosaic of images captured by the Curiosity rover's MAHLI camera shows the rover itself, with Mount Sharp in the background to the right. Several divots in a sand dune can be seen at lower left, and scientists are due to discuss their analysis of those soil samples during this week's American Geophysical Union meeting.
By Senior writer
updated 12/2/2012 9:53:06 PM ET 2012-12-03T02:53:06

NASA will discuss the latest Red Planet activities of its Mars rover Curiosity on Monday, but space geeks shouldn't get their hopes up for a bombshell announcement.

Despite rampant rumors to the contrary, Monday's press conference — held at noon ET during the fall meeting of the American Geophysical Union in San Francisco — won't present any earth-shaking results that would force humanity to rethink its place in the universe, NASA officials said.

"Rumors and speculation that there are major new findings from the mission at this early stage are incorrect," officials at NASA's Jet Propulsion Laboratory in Pasadena, Calif., which manages Curiosity's mission, wrote in an update Thursday. "The news conference will be an update about first use of the rover's full array of analytical instruments to investigate a drift of sandy soil."

Rumors of a big Curiosity discovery began swirling two weeks ago, after an NPR story quoted mission chief scientist John Grotzinger as saying that the rover's Sample Analysis at Mars instrument, or SAM, was gathering data "for the history books." [Latest Photos from Curiosity Rover]

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Because SAM can identify organic compounds — the carbon-containing building blocks of life as we know it — many people speculated that the car-sized robot had discovered complex organics in a Martian soil sample.

But that's not the case, JPL officials say.

"At this point in the mission, the instruments on the rover have not detected any definitive evidence of Martian organics," they wrote in Thursday's update.

NASA's attempts to rein in such rumors and set reasonable expectations for Monday's press conference began with some thoughts from Curiosity itself on Nov. 21 (via the rover's JPL-run Twitter account, @MarsCuriosity).

"What did I discover on Mars? That rumors spread fast online. My team considers this whole mission 'one for the history books,'" Curiosity wrote in a Twitter post that day.

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The $2.5 billion Curiosity rover landed Aug. 5 inside the Red Planet's huge Gale Crater, kicking off its primary two-year mission to determine if Mars has ever been able to support microbial life.

The six-wheeled robot is the largest and most capable explorer ever sent to the surface of another world, NASA officials say. Curiosity has already discovered an ancient streambed where water likely flowed for thousands of years long ago, and it may well make a truly monumental discovery about the history and evolution of Mars before its roving days are done.

Just don't expect such an announcement on Monday.

Visit Space.com Monday for complete coverage of NASA's Mars rover Curiosity announcement and other space news from the American Geophysical Union's annual fall meeting. Follow Space.com senior writer Mike Wall on Twitter @michaeldwallor Space.com @Spacedotcom. We're also on Facebookand Google+.

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Photos: Curiosity's space odyssey to Mars

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  1. Caring for Curiosity

    NASA's Curiosity rover is as big as a compact car and weighs a ton ... and it's on Mars. Here's where the journey began. A white-room team works on the six-wheeled spacecraft on Aug. 13, 2011, at the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. (NASA via Getty Images) Back to slideshow navigation
  2. Liftoff!

    An Atlas 5 rocket rises from Cape Canaveral Air Force Station in Florida on Nov. 26, 2011, with NASA's Mars Science Laboratory spacecraft sealed inside its payload fairing. That spacecraft, in turn, enclosed and protected the Curiosity rover. (NASA via Getty Images) Back to slideshow navigation
  3. Mohawk Guy at work

    Activity lead Bobak Ferdowsi works inside the Spaceflight Operations Facility for NASA's Curiosity rover at NASA's Jet Propulsion Laboratory in Pasadena, Calif., on Aug. 5, 2012 - the rover's landing day. Ferdowsi, who adopts a fresh hairdo for each space mission, became an Internet sensation thanks to his stars-and-stripes Mohawk and his youthful manner. (Brian van der Brug / Pool via Getty Images) Back to slideshow navigation
  4. Curious about Curiosity

    Jasper Goldberg and Andreas Bastian, both 22, watch live NASA coverage of Curiosity's descent to Mars on the giant video screen in New York's Times Square. (Andrew Burton / Reuters) Back to slideshow navigation
  5. Watching and waiting

    Steve Collins waits for word at the Jet Propulsion Laboratory's mission control room during the "seven minutes of terror" as Curiosity approaches the surface of Mars on Aug. 5. Collins was working at JPL in 1993 when NASA's Mars Observer probe was lost just before its scheduled arrival at the Red Planet. (Fred Prouser / Reuters) Back to slideshow navigation
  6. Touchdown!

    The Mars Science Laboratory team in the Mission Support Area at NASA's Jet Propulsion Laboratory reacts after learning that the Curiosity rover has landed safely on Mars. The happy news came at 10:31 p.m. PT Aug. 5 (1:31 a.m. ET Aug. 6). (Bill Ingalls / NASA via Reuters) Back to slideshow navigation
  7. From Mars to Times Square

    Spectators in New York's Times Square cheer the announcement that NASA's Curiosity rover successfully landed on Mars. (Peter Foley / EPA) Back to slideshow navigation
  8. Great catch!

    As it flew high above, NASA's Mars Reconnaissance Orbiter captured this picture of the Curiosity rover and its parachute descending to the Martian surface on Aug. 5. The inset image has been processed to bring out additional detail in the view of the rover and the chute. (NASA / JPL-Caltech via AP) Back to slideshow navigation
  9. Flying saucer

    A color image shows the Mars Science Laboratory's heat shield, as seen by a camera on the Curiosity rover during the spacecraft's descent on Aug. 5. The picture was obtained by the Mars Descent Imager instrument, also known as MARDI, and shows the 15-foot (4.5-meter) diameter heat shield when it was flying away 50 feet (16 meters) below the spacecraft. This image shows the inside surface of the heat shield, with its protective multilayered insulation. (NASA / JPL-Caltech / MSSS) Back to slideshow navigation
  10. The mountain ahead

    One of the first views from NASA's Curiosity rover, which landed on Mars on Aug. 5, shows the rover's shadow in the foreground and a 3-mile-high mountain known as Aeolis Mons or Mount Sharp in the distance. That mountain is the rover's eventual destination. The picture was taken through a "fisheye" wide-angle lens by one of the rover's hazard avoidance cameras. (NASA / JPL-Caltech via AFP - Getty) Back to slideshow navigation
  11. Miles and miles on Mars

    This image, released on Aug. 9, shows part of the deck of NASA's Curiosity rover as seen by one of the rover's navigation cameras. The rover's pointy low-gain antenna and its paddle-shaped high-gain antenna are among the pieces of hardware visible in the foreground. The rim of Gale Crater can be seen at the horizon. (NASA / JPL-Caltech via AFP - Getty) Back to slideshow navigation
  12. Curiosity's crime scene

    The four main pieces of hardware that arrived on Mars with NASA's Curiosity rover are pinpointed in this image from NASA's Mars Reconnaissance Orbiter, taken 24 hours after landing. The heat shield was the first piece to hit the ground, followed by the back shell attached to the parachute. The rover itself was lowered to the ground on cables by its rocket-powered sky crane. The cables were cut, and then the sky crane flew away to its own crash landing. (NASA / JPL-Caltech via Getty Images) Back to slideshow navigation
  13. What a blast!

    This is a portion of the first 360-degree black-and-white panoramic view acquired by the navigation cameras aboard NASA's Curiosity rover. Two disturbed areas are visible in the foreground, where the rocket thrusters on Curiosity's sky crane blasted away the surface gravel to reveal bedrock below. The high country of Gale Crater's rim can be seen in the distance. (NASA / JPL-Caltech via AFP - Getty) Back to slideshow navigation
  14. First color picture

    An image from the Curiosity rover's Mars Hand Lens Imager, or MAHLI, provides the first color view of the north wall and rim of Gale Crater. The picture was taken by the MAHLI camera at the end of Curiosity's stowed robotic arm. The view appears fuzzy because of the dust that has settled on the camera's removable cover. (NASA / JPL-Caltech / MSSS via AP) Back to slideshow navigation
  15. Mars in living color

    A color image from NASA's Curiosity Rover shows the pebble-covered surface of Mars. This is a portion of the first color 360-degree panorama from NASA's Curiosity rover, made up of thumbnails, which are small copies of higher-resolution images. The mission's destination, a mountain at the center of Gale Crater called Aeolis Mons or Mount Sharp, can be seen in the distance rising up toward the left. Blast marks from the rover's descent stage are in the foreground. (NASA / JPL-Caltech / MSSS / Getty Images) Back to slideshow navigation
  16. Pew-pew

    This composite image, with magnified insets, shows the results of the first laser test by the ChemCam instrument aboard NASA's Curiosity rover on Mars. The composite incorporates a Navcam image taken prior to the test, with insets taken by the camera in ChemCam. The circular insert highlights the rock before the laser test. The square inset is further magnified and processed to show the effect of the laser blasts on Aug. 19. (LANL / MSSS / JPL-Caltech / NASA via Reuters) Back to slideshow navigation
  17. Looking ahead

    The Mars Curiosity rover's robotic arm takes aim at Mount Sharp in a mosaic that combines navigation-camera imagery from Sols 2, 12 and 14 (Aug. 8, 18 and 20). Mount Sharp, also known as Aeolis Mons, is a 3-mile-high mountain within Gale Crater that will be the rover's ultimate destination. (Marco Di Lorenzo / Ken Kremer / JPL-Caltech / NASA) Back to slideshow navigation
  18. Future mapped out

    NASA's Curiosity rover landed inside Gale Crater at the green dot, within the Yellowknife quadrangle, on Aug. 5. The team has decided to send it first to the region marked by a blue dot, that is nicknamed Glenelg. That area marks the intersection of three kinds of terrain. Then the rover will aim for the blue spot marked "Base of Mt. Sharp," where a natural break in Martian sand dunes will provide an opening for Curiosity to begin scaling the lower reaches of Mount Sharp. (Univ. of Ariz. / JPL-Caltech / NASA via Reuters) Back to slideshow navigation
  19. First steps

    Curiosity's navigation camera system looks back at the wheel tracks from the rover's first test drive on Aug. 22. The $2.5 billion rover made its first moves a little more than two weeks after its arrival on Mars. (JPL-Caltech / NASA via AFP - Getty Images) Back to slideshow navigation
  20. Mount Sharp

    Mount Sharp is seen in the distance in an image taken Aug. 23 by the 34-millimeter Mast Camera on Curiosity. The gravelly area around Curiosity's landing site is visible in the foreground. Farther away, about a third of the way up from the bottom of the image, the terrain falls off into a depression (a swale). Beyond the swale, in the middle of the image, is the boulder-strewn, red-brown rim of a moderately-sized impact crater. Father off in the distance, there are dark dunes and then the layered rock at the base of Mount Sharp. Some haze obscures the view, but the top ridge, depicted in this image, is 10 miles (16.2 kilometers) away. Scientists enhanced the color to show the Martian scene under the lighting conditions we have on Earth. (NASA via AFP - Getty Images) Back to slideshow navigation
  21. Hip-hop on Mars

    Will.i.am of the Black Eyed Peas sings at NASA's Jet Propulsion Laboratory on Aug. 28. Will.i.am's "Reach for the Stars" officially became the first song broadcast from Mars, thanks to a signal beamed from Curiosity. (Nick Ut / AP) Back to slideshow navigation
  22. Mmm, Marsberries!

    Small spherical objects fill the field in this Martian mosaic combining four images from the Microscopic Imager on NASA's Opportunity rover. The Sept. 6 view covers an area about 2.4 inches (6 centimeters) across, at an outcrop called Kirkwood in the Cape York segment of the western rim of Mars' Endeavour Crater. Shortly after its landing in 2004, Opportunity spotted similar spherules that were nicknamed "blueberries," but these berries are not as rich in iron, posing a scientific puzzle. (NASA/JPL-Caltech/Cornell Univ./ USGS/Modesto Junior College via EPA) Back to slideshow navigation
  23. 'Do I look fat?' Curiosity checks its belly

    A mosaic of photos taken on Sept. 9 by the Mars Hand Lens Imager on NASA's Curiosity rover shows the underside of the rover and its six wheels, with Martian terrain stretching back to the horizon. The four circular features on the front edge of the rover are the lenses for the left and right sets of Curiosity's hazard avoidance cameras, or Hazcams. Because of the different perspectives used for different images, some of the borders of the photos don't line up precisely. (NASA via AFP - Getty Images) Back to slideshow navigation
  24. A Martian rock called Jake

    NASA's Curiosity rover stopped about 8 feet (2.5 meters) in front of this Red Planet rock on Sept. 19, the mission's 43rd Martian day, or sol. The pyramid-shaped chunk was the first rock that the Curiosity rover touched for science's sake. It was named "Jake Matijevic" in honor of a top engineer who worked on every one of NASA's rover missions — but passed away just days after Curiosity's landing. Jake the rock, which measures about 10 inches (25 centimeters) tall, provided a good reference point for the rover's sophisticated instruments. (NASA via Getty Images) Back to slideshow navigation
  25. Rover's footprint

    NASA's Curiosity rover cut a wheel scuff mark into a wind-formed ripple at the "Rocknest" site on Mars to give researchers a better opportunity to examine the particle-size distribution of the material forming the ripple. The rover's right navigation camera took this image of the scuff mark on the mission's 57th Martian day, or sol (Oct. 3), the same sol that a wheel created the mark. For scale, the width of the wheel track is about 16 inches (40 centimeters). (Handout / Reuters) Back to slideshow navigation
  26. Rover's self-portrait

    The Curiosity rover used the Mars Hand Lens Imager (MAHLI) to capture the set of thumbnail images stitched together to create this full-color self-portrait in this Oct. 31, 2012 image from NASA. (NASA via Reuters) Back to slideshow navigation
  27. Life on Mars?

    The first sample of powdered rock extracted by the drill of Curiosity is seen on Feb. 20, 2013. Powder drilled out of a rock on Mars contains the best evidence yet that the Red Planet could have supported living microbes billions of years ago, the team behind NASA's Curiosity rover said March 12, 2013.

    Curiosity rover sees life-friendly conditions in ancient Mars rock. (NASA/JPL/Caltech/MSSS via EPA) Back to slideshow navigation
  28. The big picture

    This picture isn't from the Curiosity rover - it's a 2003 image from the Hubble Space Telescope, showing the full disk of Mars. The big picture hints at how much we'll be learning about the Red Planet during Curiosity's two-year, $2.5 billion mission. And that's just the beginning: Scientists hope the nuclear-powered rover will last years or even decades longer. (NASA via AP) Back to slideshow navigation
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  1. Image: NASA's Jet Propulsion Lab Holds Viewing Of Mars Curiosity Rover Landing
    NASA via Getty Images
    Above: Slideshow (28) Curiosity's space odyssey to Mars
  2. AURA / STSCI / NASA
    Slideshow (24) The greatest hits from Mars
  3. Image:
    Y. Beletsky / ESO
    Slideshow (12) Month in Space: January 2014

Explainer: 11 amazing things the Mars rover can do

  • The car-sized Curiosity rover is a 1-ton robotic beast that will take planetary exploration to the next level.

    Curiosity rover is the centerpiece of NASA's $2.5 billion Mars Science Laboratory. Its main goal is to assess whether the Red Planet is, or ever was, capable of supporting microbial life. The rover will employ 10 different science instruments to help it answer this question once it touches down on the Red Planet. Here's a brief rundown of these instruments (and one more on the rover's heat shield).

    — Mike Wall, Space.com

  • Mast Camera (MastCam)

    T.A. Dutch Slager / NASA / JPL-Caltech
    This view of the Curiosity rover's remote sensing mast shows the ChemCam in the white box at top, and the two cameras of the Mastcam system just below. Additional navigation cameras are placed farther outward from the Mastcam cameras.

    The MastCam is Curiosity's workhorse imaging tool. It will capture high-resolution color pictures and video of the Martian landscape, which scientists will study and laypeople will gawk at.

    MastCam consists of two camera systems mounted on a mast that rises above Curiosity's main body, so the instrument will have a good view of the Red Planet environment as the rover chugs through it. MastCam images will also help the mission team drive and operate Curiosity. (Photos of NASA's Curiosity Rover)

  • Mars Hand Lens Imager (MAHLI)

    NASA / JPL-Caltech
    The Curiosity rover's Mars Hand Lens Imager will acquire color close-up images of rocks and surface materials. A Swiss Army knife is shown for scale.

    MAHLI will function much like a high-powered magnifying glass, allowing Earthbound scientists to get up-close looks at Martian rocks and soil. The instrument will take color pictures of features as tiny as 12.5 microns — smaller than the width of a human hair.

    MAHLI sits on the end of Curiosity's five-jointed, 7-foot (2.1-meter) robotic arm, which is itself a marvel of engineering. So mission scientists will be able to point their high-tech hand lens pretty much wherever they want.

  • Mars Descent Imager (MARDI)

    NASA / JPL-Caltech / MSSS
    The Mars Descent Imager is flying on the Curiosity rover. A Swiss Army knife is included in the picture for purposes of showing scale.

    MARDI, a small camera located on Curiosity's main body, will record video of the rover's descent to the Martian surface (which will be accomplished with the help of a hovering, rocket-powered sky crane). (Video: Curiosity's Peculiar Landing)

    MARDI will click on a mile or two above the ground, as soon as Curiosity jettisons its heat shield. The instrument will then take video at five frames per second until the rover touches down. The footage will help the MSL team plan Curiosity's Red Planet rovings, and it should also provide information about the geological context of the landing site, the 100-mile-wide (160-km) Gale Crater.

  • Sample Analysis at Mars (SAM)

    NASA / JPL-Caltech
    This illustration of the mechanical configuration of the SAM shows the three instruments and several elements of the Chemical Separation and Processing Laboratory.

    SAM is the heart of Curiosity; at 83 pounds (38 kilograms), it makes up about half of the rover's science payload.

    SAM is actually a suite of three separate instruments — a mass spectrometer, a gas chromatograph and a laser spectrometer. These instruments will search for carbon-containing compounds, the building blocks of life as we know it. They will also look for other elements associated with life on Earth, such as hydrogen, oxygen and nitrogen.

    The SAM instrument suite is located in Curiosity's main body. The rover's robotic arm will drop samples into SAM via an inlet on the rover's exterior. Some of these samples will come from the interior of rocks, powder bored out by a 2-inch (5-centimeter) drill situated at the end of the arm.

    None of Curiosity's predecessors could get deep into Martian rocks, so scientists are excited about the drill.

    "For a geologist that studies rocks, there's nothing better than getting inside," said MSL deputy project scientist Joy Crisp, of NASA's Jet Propulsion Laboratory in Pasadena, Calif.

  • Chemistry and Mineralogy (CheMin)

    NASA / JPL-Caltech
    Clean-room workers carefully steer the hoisted CheMin instrument toward its installation into the Curiosity rover.

    CheMin will identify different types of minerals on Mars and quantify their abundance, which will help scientists better understand past environmental conditions on the Red Planet.

    Like SAM, CheMin has an inlet on Curiosity's exterior to accept samples delivered by the rover's robotic arm. The instrument will shine a fine X-ray beam through the sample, identifying minerals' crystalline structures based on how the X-rays diffract.

    "This is like magic to us," Crisp told Space.com. X-ray diffraction is a leading diagnostic technique for Earthbound geologists, she explained, but it hasn't made it to Mars yet. So CheMin should help Curiosity provide more definitive mineral characterizations than previous Mars rovers such as Spirit and Opportunity have been able to achieve.

  • Chemistry and Camera (ChemCam)

    NASA / JPL-Caltech
    An artist's conception shows the Curiosity rover's ChemCam firing its laser at Martian rock.

    For sheer coolness, it's tough to beat ChemCam. This instrument will fire a laser at Martian rocks from up to 30 feet (9 meters) away and analyze the composition of the vaporized bits.

    ChemCam will thus enable Curiosity to study rocks that are out of reach of its flexible robotic arm. It will also help the mission team determine from afar whether or not they want to send the rover over to investigate a particular landform.

    ChemCam is composed of several different parts. The laser sits on Curiosity's mast, along with a camera and a small telescope. Three spectrographs sit in the rover's body, connected to the mast components by fiber optics. The spectrographs will analyze the light emitted by excited electrons in the vaporized rock samples.

  • Alpha Particle X-Ray Spectrometer (APXS)

    NASA / JPL-Caltech
    The sensor head for the Alpha Particle X-ray Spectrometer is installed during testing. The head is 7.8 centimeters or about 3 inches tall.

    APXS, which sits at the end of Curiosity's arm, will measure the abundances of various chemical elements in Martian rocks and dirt.

    Curiosity will place the instrument in contact with samples of interest, and APXS will shoot out X-rays and helium nuclei. This barrage will knock electrons in the sample out of their orbits, causing a release of X-rays. Scientists will be able to identify elements based on the characteristic energies of these emitted X-rays.

    Spirit and Opportunity were outfitted with a previous version of APXS and used the instrument to help elucidate the prominent role water has played in shaping the Martian landscape. (Latest Mars Photos From Spirit and Opportunity)

  • Dynamic Albedo of Neutrons (DAN)

    NASA / JPL-Caltech / Roscosmos
    This diagram shows how the Detector of Albedo Neutrons could be used to sense the presence of subsurface water on Mars.

    DAN, located near the back of Curiosity's main body, will help the rover search for ice and water-logged minerals beneath the Martian surface.

    The instrument will fire beams of neutrons at the ground, then note the speed at which these particles travel when they bounce back. Hydrogen atoms tend to slow neutrons down, so an abundance of sluggish neutrons would signal underground water or ice.

    DAN should be able to map out water concentrations as low as 0.1 percent at depths up to 6 feet (2 m).

  • Radiation Assessment Detector (RAD)

    NASA / JPL-Caltech
    The RAD instrument is mounted just below the Curiosity rover's top deck, with the charged particle telescope pointing toward the zenith.

    The toaster-size RAD is designed specifically to help prepare for future human exploration of Mars. The instrument will measure and identify high-energy radiation of all types on the Red Planet, from fast-moving protons to gamma rays.

    RAD's observations will allow scientists to determine just how much radiation an astronaut would be exposed to on Mars. This information could also help researchers understand how much of a hurdle Mars' radiation environment might have posed to the origin and evolution of life on the Red Planet.

  • Rover Environmental Monitoring Station (REMS)

    NASA
    This diagram shows the location of the REMS booms on the rover's mast, plus detailed views showing the location of wind, humidity and temperature sensors.

    This tool, which sits partway up Curiosity's mast, is a Martian weather station. REMS will measure atmospheric pressure, humidity, wind speed and direction, air temperature, ground temperature and ultraviolet radiation.

    All of this information will be integrated into daily and seasonal reports, allowing scientists to get a detailed look at the Martian environment.

  • MSL Entry, Descent and Landing Instrumentation (MEDLI)

    Lockheed Martin
    The MEDLI instrument package is the black box in the middle left of this photo, which shows the heatshield for the Mars Science Laboratory.

    MEDLI isn't one of Curiosity's 10 instruments, since it was built into the heat shield that protected the rover during its descent through the Martian atmosphere. But it's worth a few words here.

    MEDLI measured the temperatures and pressures that the heat shield experienced as the MSL spacecraft streaked through the Martian sky. This information can tell engineers how well the heat shield, and their models of the spacecraft's trajectory, performed.

    Researchers will use MEDLI data to improve designs for future Mars-bound spacecraft.

    You can follow Space.com senior writer Mike Wall on Twitter: @michaeldwall. Follow Space.com for the latest in space science and exploration news on Twitter @Spacedotcom and on Facebook.

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