{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-572d6a42.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-f4d0de30.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Spacecraft finds evidence of water on Mars' data-url='/boclips/videos/5c54be45d8eafeecae13a606' data-video-url='/boclips/videos/5c54be45d8eafeecae13a606' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nSpacecraft finds evidence of water on Mars\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eNASA animation1. Wide animated view of Odyssey probe in orbit over MarsWashington DC - 28 May 20022. Onscreen computer image of Mars showing gamma ray spectrometer data3. Close onscreen shot of south polar region of Mars (colour coded in...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eNASA animation\u003cbr/\u003e1. Wide animated view of Odyssey probe in orbit over Mars\u003cbr/\u003eWashington DC - 28 May 2002\u003cbr/\u003e2. Onscreen computer image of Mars showing gamma ray spectrometer data\u003cbr/\u003e3. Close onscreen shot of south polar region of Mars (colour coded in blue)\u003cbr/\u003e4. Smithsonian Institution scientist John Grant viewing image\u003cbr/\u003e5. Grant pointing to image data\u003cbr/\u003e6. Close shot of Grant\u003cbr/\u003e7. Close shot of hand on computer mouse\u003cbr/\u003e8. Onscreen view of Mars image data\u003cbr/\u003e9. Wide shot of Grant during interview\u003cbr/\u003e10. SOUNDBITE: (English) Dr. John Grant, Geologist, Centre for Earth and Planetary Studies, US National Air and Space Museum\u003cbr/\u003e\"What's really, really surprising is the amount of ice. The strength of the signal that they're getting suggests that you've got about 20 to 30 per cent by weight of water, or perhaps by volume even more than 50 or 60 per cent. So if you think about Mars and you think about the fact that there are channels that course across the surface, and this idea that it was once a place that was much more like the Earth, the big question that you're always left with is where did the water go? And here's our first real evidence that it might be lurking beneath the surface where a number of folks have thought it might be, but here's our first real proof.\"\u003cbr/\u003e11. Wide shot of Grant looking at Mars image data on computer screen\u003cbr/\u003e12. Onscreen image showing Mars data\u003cbr/\u003e13. SOUNDBITE: (English) Dr. John Grant, Geologist, Centre for Earth and Planetary Studies, US National Air and Space Museum\u003cbr/\u003e\"Well, we're talking about water ice. We're talking about the same kind of thing that you put in your drink. But the difference is that the ice isn't exactly what you'd want to put in your drink because it's a mixture of crud and ice. In fact, when you look at the surface, there's been a lot of inferences about is there water-ice there, based on sort of textures that you see, but no direct evidence. And in fact, depending on how much ice is actually there, it's some sort of dirt-ice mixture or ice-dirt mixture.\"\u003cbr/\u003e14. Close onscreen image of Mars data (Grant pointing to screen)\u003cbr/\u003e15. Animated view of Odyssey probe in orbit over Mars\u003cbr/\u003e16. Wide photo image composite view of Mars\u003cbr/\u003eScientists looking at data from a probe launched last year by the U-S space agency NASA and now orbiting Mars, say there's strong evidence that ice lies just beneath the surface of the red planet. They say there's evidence of vast deposits of water frozen under the rocky soil of Mars. That water, they say, could provide a source of drinking water and rocket fuel for explorers and boosts the possibility that life once existed on the planet.\u003cbr/\u003eThe findings are based on data compiled from NASA's Odyssey space probe, which is circling over Mars on a mission to search for signs of water and other chemicals. In a study at the University of Arizona, researchers reported that a gamma ray spectrometer aboard the probe detected a high concentration of hydrogen in the top three feet (metres) of Mars in large areas around the planet's poles.\u003cbr/\u003eThe results of the research will appear in the journal Science next Friday.\u003cbr/\u003ePlanetary experts have long believed Mars once had lakes, ponds and rivers and was more like Earth. The water disappeared early in the planet's history and researchers have been puzzled about where it went. The new studies suggest the water filtered into the soil and became trapped as ice.\u003cbr/\u003eOdyssey's instruments detect the signature of water in the soil by measuring the reaction of cosmic rays as they strike the Martian surface. Cosmic rays are highly energetic particles, and when they collide with atoms, they send other particles, such as neutrons, flying off in all directions. These neutrons, in turn, strike hydrogen atoms, gamma rays are emitted and the neutrons are slowed.\u003cbr/\u003eBy measuring the gamma rays and the velocity of neutrons, the instruments collect a signature for the presence of hydrogen.\u003cbr/\u003eMost scientists believe the most likely source of this hydrogen is frozen water, which comprises two atoms of hydrogen and one of oxygen.\u003cbr/\u003eThe new evidence supports the idea of a great deal of water on Mars and scientists say this could make it easier to explore the red planet.\u003cbr/\u003eThe presence of vast quantities of water also boosts the possibility that life - probably microbes - once existed on Mars and possibly could still be there deep underground in pockets of liquid water.\u003cbr/\u003e\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci 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