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 |  Subject: Blue skies on Pluto: NASA New Horizons probe spots 'gorgeous' vistas on icy dwarf planet  Fri Oct 09, 2015 7:20 am | |
| Blue skies on Pluto: NASA New Horizons probe spots 'gorgeous' vistas on icy dwarf planetScientists shocked after discovering distant Pluto has skies and icecaps resembling our own Discoveries and New Horizons: The blue skies are the result of an atmospheric haze over PlutoThe NASA New Horizons probe has beamed back stunning pictures of Pluto which show it has blue skies and ice caps.These incredible images prove Pluto has surprisingly Earth-like features, although scientists have not been able to confirm whether it could hold life.Professor Brian Cox recently suggested there could be an ocean beneath Pluto's frozen surface, which may be warm enough to hold living organisms. Water water everywhere: These blue patches show places where water ice has formedNASA scientists were taken aback by the new photographs.“Who would have expected a blue sky in the Kuiper Belt?" asked Alan Stern, New Horizons principal investigator from Southwest Research Institute."It’s gorgeous."The colour of the "haze" reveals important clues about the chemical make up of Pluto's surface, as well as its atmosphere."That striking blue tint tells us about the size and composition of the haze particles,” said science team researcher Carly Howett.Rex New Horizons snapped this image of Pluto from 476,000 miles away"A blue sky often results from scattering of sunlight by very small particles. On Earth, those particles are very tiny nitrogen molecules."On Pluto they appear to be larger — but still relatively small — soot-like particles we call tholins.”Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/PA Wire Artist's impression of the New Horizons spacecraftThese tholins undergo complex chemical reactions high above the surface of Pluto, falling back down to the ground where they "add to Pluto’s red coloring".Although the skies are the most beautiful discovery announced today, the ice could prove to be more important, as it could point to the presence of larger bodies of water.NASA/JHUAPL/SWRI Stunning: The Rich Color Variations of PlutoExperts are now examining the pictures in a bid to discover exactly where the water has come from.“Large expanses of Pluto don’t show exposed water ice,” said science team member Jason Cook. This image shows the geology of Pluto and has been dubbed 'snakeskin' by NASA because of the shape of the rocks"Understanding why water appears exactly where it does, and not in other places, is a challenge that we are digging into.”Stargazers were hoping NASA would announce the presence of alien life today, after Alan Stern, a planetary scientist for the agency, said NASA would reveal an "amazing" discovery this afternoon.Stern described Pluto as "alive" and said: "It has weather, it has hazes in the atmosphere [and] active geology.”Reuters A near-sunset view of the rugged, icy mountains and flat ice plains on PlutoHowever, we may not find out whether the planet contains real life for quite some time, due to the difficulty of getting to Pluto, Professor Brian Cox said last month."The New Horizons probe showed you there there may well be a subsurface ocean on Pluto, which means - if our understanding of life on Earth is even slightly correct - that you could have living things there," he said.We know the surface of Pluto is very young, which could indicate high levels of geological activity, whilst its also boasts a series of strange nitrogen glaciers.NASA has also suggested an underground ocean could be driving all the activity on its surface.ICE ON PLUTO: Now frozen water and BLUE SKY found on dwarf planet giving more hope of life NASA has discovered frozen water and earth-like blue skies on Pluto in another historic development in the search for extraterrestrial life.By JON AUSTINPUBLISHED: 06:40, Fri, Oct 9, 2015 | UPDATED: 08:31, Fri, Oct 9, 2015 NASAJust 10 days after confirming that liquid water has been found on Mars, the US space agency revealed a landmark discovery the amazing dwarf-planet has both ice and a 'gorgeous' blue sky.A Nasa spokesman said: "New Horizons has detected numerous small, exposed regions of water ice on Pluto."The discovery was made from data collected by the Ralph spectral composition mapper on New Horizons."There has been repeated speculation Pluto may have a liquid sea under its surface, and confirmation of water ice on the surface adds to this theory. Amazingly, much of the frozen ice has been found in a deep crack running from an interesting crater on Pluto first highlighted to Nasa by Express.co.uk as a potentially interesting feature back in July when images first beamed back.At the time New Horizons planetary scientist David Grinspoon said it could be an eroded asteroid or comet impact crater and tectonic lines, hinting that the dwarf planet may still be geologically active.more@ http://www.express.co.uk/news/science/610802/ICE-ON-PLUTO-Frozen-water-and-blue-skies-found-on-dwarf-planet |
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