NASA SPACECRAFT SEES ICE ON MARS EXPOSED BY METEOR IMPACTS

NASA's Mars Reconnaissance Orbiter has revealed frozen water hiding just below the surface of mid-latitude Mars. The spacecraft's observations were obtained from orbit after meteorites excavated fresh craters on the Red Planet.

Material Excavated by a Fresh Impact and Identified as Water Ice mars water

Scientists controlling instruments on the orbiter found bright ice exposed at five Martian sites with new craters that range in depth from approximately 1.5 feet to 8 feet. The craters did not exist in earlier images of the same sites. Some of the craters show a thin layer of bright ice atop darker underlying material. The bright patches darkened in the weeks following initial observations, as the freshly exposed ice vaporized into the thin Martian atmosphere. One of the new craters had a bright patch of material large enough for one of the orbiter's instruments to confirm it is water ice.

The finds indicate water ice occurs beneath Mars' surface halfway between the north pole and the equator, a lower latitude than expected in the Martian climate. "This ice is a relic of a more humid climate from perhaps just several thousand years ago," said Shane Byrne of the University of Arizona. Byrne is a member of the team operating the orbiter's High Resolution Imaging Science Experiment, or HiRISE camera, which captured the unprecedented images. Byrne and 17 co-authors report the findings in the Sept. 25 edition of the journal Science. "We now know we can use new impact sites as probes to look for ice in the shallow subsurface," said Megan Kennedy of Malin Space Science Systems in San Diego, a co-author of the paper and member of the team operating the orbiter's Context Camera. During a typical week, the Context Camera returns more than 200 images of Mars that cover a total area greater than California. The camera team examines each image, sometimes finding dark spots that fresh, small craters make in terrain covered with dust. Checking earlier photos of the same areas can confirm a feature is new. The team has found more than 100 fresh impact sites, mostly closer to the equator than the ones that revealed ice. An image from the camera on Aug. 10, 2008, showed apparent cratering that occurred after an image of the same ground was taken 67 days earlier. The opportunity to study such a fresh impact site prompted a look by the orbiter's higher resolution camera on Sept. 12, 2009, confirming a cluster of small craters. "Something unusual jumped out," Byrne said. "We observed bright material at the bottoms of the craters with a very distinct color. It looked a lot like ice." The bright material at that site did not cover enough area for a spectrometer instrument on the orbiter to determine its composition. However, a Sept. 18, 2008, image of a different mid-latitude site showed a crater that had not existed eight months earlier. This crater had a larger area of bright material. "We were excited about it, so we did a quick-turnaround observation," said co-author Kim Seelos of Johns Hopkins University Applied Physics Laboratory in Laurel, Md., "Everyone thought it was water ice, but it was important to get the spectrum for confirmation." The Mars orbiter is designed to facilitate coordination and quick response by the science teams, making it possible to detect and understand rapidly changing features. The ice exposed by fresh impacts suggests that NASA's Viking 2 lander, digging into mid-latitude Mars in 1976, might have struck ice if it had dug four inches deeper. The Viking 2 mission, which consisted of an orbiter and a lander, launched in September 1975 and became one of the first two space probes to land successfully on the Martian surface. The Viking 1 and 2 landers characterized the structure and composition of the atmosphere and surface. They also conducted on-the-spot biological tests for life on another planet. NASA's Jet Propulsion Laboratory in Pasadena manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate in Washington. Lockheed Martin Space Systems in Denver built the spacecraft. The Context Camera was built and is operated by Malin. The University of Arizona operates the HiRISE camera, which Ball Aerospace & Technologies Corp., in Boulder, Colo., built. The Johns Hopkins University Applied Physics Laboratory led the effort to build the Compact Reconnaissance Imaging Spectrometer and operates it in coordination with an international team of researchers. To view images of the craters and learn more about the Mars Reconnaissance Orbiter, visit:

NASA WEBSITE

22 Comments

  1. Posted 23rd July 2010 at 12:25 | Permalink

    Amazing that water ice has been found so far south from the north pole.

  2. Posted 18th April 2019 at 12:09 | Permalink

    88236 135913This internet web site is often a walk-through rather than the details you wanted about it and didn?t know who ought to. Glimpse here, and you?ll certainly discover it. 575420

  3. Posted 3rd July 2019 at 17:56 | Permalink

    645833 41295As I site possessor I feel the content material material here is truly superb , appreciate it for your efforts. 156795

  4. Posted 20th September 2019 at 06:04 | Permalink

    295468 635993I got what you intend, saved to bookmarks , really decent internet internet site . 68972

  5. Posted 24th September 2019 at 05:08 | Permalink

    839974 793216I got what you intend, saved to favorites , quite decent internet web site . 366393

  6. Posted 7th October 2019 at 15:51 | Permalink

    67730즐거운 놀이 행복한 게임 즐거운 사이트
    큰사이트
    43221

  7. Posted 16th October 2019 at 01:42 | Permalink

    733917 550343Outstanding post, I believe individuals need to learn a whole lot from this web web site its rattling user genial . 668419

  8. Posted 23rd October 2019 at 12:00 | Permalink

    4438즐거운 놀이 행복한 게임 즐거운 사이트
    큰사이트
    7081

  9. Posted 27th October 2019 at 21:13 | Permalink

    30320nolsave is best website
    Big web
    435

  10. Posted 1st November 2019 at 04:51 | Permalink

    677250 571956Enjoyed examining this, quite great stuff, thanks . 558605

  11. Posted 5th November 2019 at 05:49 | Permalink

    47742bitcoin web site Big News and Chart
    coin is coinddang
    627

  12. Posted 9th November 2019 at 20:48 | Permalink

    740002 376123I got what you intend, saved to favorites , extremely decent internet web site . 397977

  13. Posted 13th December 2019 at 14:34 | Permalink

    158195 540030The write-up posted was very informative and valuable. You men and women are doing an excellent job. Maintain going. 447053

  14. Posted 25th December 2019 at 07:52 | Permalink

    533680 122334Outstanding post, I conceive weblog owners need to acquire a lot from this blog its very user pleasant. 553653

  15. Posted 16th January 2020 at 08:47 | Permalink

    864969 393294An incredibly interesting examine, I might not agree completely, but you do make some really legitimate factors. 973275

  16. Posted 19th January 2020 at 07:53 | Permalink

    60839검증 추천사이트 국내 대형 커뮤니티
    즐거운 놀이터
    8284

  17. Posted 27th January 2020 at 14:53 | Permalink

    778274 416454Some actually good stuff on this internet website , I enjoy it. 967492

  18. Posted 29th January 2020 at 17:30 | Permalink

    297474 638137But, what in regards to the conclusion? Are you positive about the supply? 662836

  19. Posted 5th February 2020 at 03:35 | Permalink

    669728 864754Wow, incredible weblog layout! How long have you been blogging for? you make blogging look easy. The overall appear of your internet site is fantastic, as nicely as the content! 116489

  20. Posted 9th February 2020 at 21:34 | Permalink

    487483 792055You?re the very best, It is posts like this that keep me coming back and checking this web site regularly, thanks for the information! 942219

  21. Posted 20th February 2020 at 14:27 | Permalink

    192434 250384Check out our web site for data about securities based lending and far more. There is information about stock and equity loans as properly as application forms. 919246

  22. Posted 24th June 2020 at 19:29 | Permalink

    780321 216731I believe one of your commercials caused my internet browser to resize, you might well want to put that on your blacklist. 500801

One Trackback

  1. By astronomy diary on 27th September 2014 at 11:56

    astronomy diary…

    NASA SPACECRAFT SEES ICE ON MARS EXPOSED BY METEOR IMPACTS – FFRUKiT!…

Shout about this article…

Your email is never shared. Required fields are marked *

*
*