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Latest Mars Reconnaissance Orbiter Stories

2011-04-21 13:00:00

WASHINGTON, April 21, 2011 /PRNewswire-USNewswire/ -- NASA's Mars Reconnaissance Orbiter (MRO) has discovered the total amount of atmosphere on Mars changes dramatically as the tilt of the planet's axis varies. This process can affect the stability of liquid water if it exists on the Martian surface and increase the frequency and severity of Martian dust storms. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) Researchers using MRO's ground-penetrating radar identified a...

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2011-03-10 06:55:00

NASA's versatile Mars Reconnaissance Orbiter, which began orbiting Mars five years ago today, March 10, has radically expanded our knowledge of the Red Planet and is now working overtime. The mission has provided copious information about ancient environments, ice-age-scale climate cycles and present-day changes on Mars. The orbiter observes Mars' surface, subsurface and atmosphere in unprecedented detail. The spacecraft's large solar panels and dish antenna have enabled it to transmit more...

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2011-03-09 12:05:00

NASA's Mars Exploration Rover Opportunity has nearly completed its three-month examination of a crater informally named "Santa Maria," but before the rover resumes its overland trek, an orbiting camera has provided a color image of Opportunity beside Santa Maria. The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter acquired the image on March 1, while Opportunity was extending its robotic arm to take close-up photos of a rock called "Ruiz...

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2011-03-08 14:13:35

Rocks on Mars dug from far underground by crater-blasting impacts are providing glimpses of one possible way Mars' atmosphere has become much less dense than it used to be. At several places where cratering has exposed material from depths of about 5 kilometers (3 miles) or more beneath the surface, observations by a mineral-mapping instrument on NASA's Mars Reconnaissance Orbiter indicate carbonate minerals. These are not the first detections of carbonates on Mars. However, compared to...

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2011-02-03 14:55:00

According to research using images from a NASA orbiter, sand dunes in a vast area of northern Mars long thought to be frozen in time are changing with both sudden and gradual motions. NASA said on Thursday that the dune fields cover an area the size of Texas in a band around the planet at the edge of Mars' north polar cap.  The new findings suggest they are among the most active landscapes on Mars.  However, few changes in these dark-toned dunes had been detected before a campaign...

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2011-01-04 14:35:00

The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter captured a Dec. 31, 2010, view of the Mars Exploration Rover Opportunity on the southwestern rim of a football-field-size crater called "Santa Maria." Opportunity arrived at the western edge of Santa Maria crater in mid-December and will spend about two months investigating rocks there. That investigation will take Opportunity into the beginning of its eighth year on Mars. Opportunity landed...

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2011-01-03 07:55:00

NASA's Mars rover Spirit has had its odometer stuck on 4.8 miles for more than 18 months and has not transmitted any data or signals since March 2010. The Associated Press (AP) reports that Monday marks the rover's seventh year on the red planet and NASA doesn't know if Spirit is dead or alive, but is continuing to listen for any peep as the rover remains trapped in a sand trap. "There's a realistic possibility that Spirit may never wake up again," Dave Lavery, Mars rover program executive...

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2010-12-17 07:25:00

NASA's Mars Opportunity rover is getting important tips from an orbiting spacecraft as it explores areas that might hold clues about past Martian environments. Researchers are using a mineral-mapping instrument aboard NASA's Mars Reconnaissance Orbiter (MRO) to help the rover investigate a large ancient crater called Endeavour. MRO's Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) is providing maps of minerals at Endeavour's rim that are helping the team choose which area to...

2010-12-16 16:39:00

SAN FRANCISCO, Dec. 16, 2010 /PRNewswire-USNewswire/ -- NASA's Mars Opportunity rover is getting important tips from an orbiting spacecraft as it explores areas that might hold clues about past Martian environments. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) Researchers are using a mineral-mapping instrument aboard NASA's Mars Reconnaissance Orbiter (MRO) to help the rover investigate a large ancient crater called Endeavour. MRO's Compact Reconnaissance Imaging...

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2010-12-16 07:45:00

NASA's Mars Odyssey, which launched in 2001, broke the record Wednesday for longest-serving spacecraft at the Red Planet. The probe began its 3,340th day in Martian orbit at 8:55 p.m. EST on Wednesday to break the record set by NASA's Mars Global Surveyor, which orbited Mars from 1997 to 2006. Odyssey's longevity enables continued science, including the monitoring of seasonal changes on Mars from year to year and the most detailed maps ever made of most of the planet. In 2002, the spacecraft...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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