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Published: August 31, 2015 18:41 IST | Updated: September 1, 2015 04:40 IST London, August 31, 2015

lien living beings on Pluto likely: UK scientists

PTI

APThis image put out NASA shows Pluto made by combining several images from two cameras on the New Horizons spacecraft. The images

were taken when the spacecraft was 280,000 miles (450,000 kilometers) away from Pluto.

Pluto may contain a subsurface ocean warm enough to host life, according to English physicist Brian Cox who also said that humans could bethe only complex life in our galaxy.

Coxbelieves the tell-tale ooze of glaciers on Plutos surface hints at the possibility of a subterranean sea warm enough to host organicchemistry.

New Horizons probe showed that there may be a subsurface ocean on Pluto which means - if our understanding of life on Earth is evenslightly correct- that you could have living things there, Cox told The Times

The New Horizons spacecraft completed a three billion mile journey across the Solar System and performed a flyby of Pluto in July.

The spacecraft captured detailed images and other data of Pluto and also of its moons: Charon, Styx, Nix, Kerberos and Hydra.

It is unlikely that New Horizons would be able to tell for certain whether warm water exists in the dwarf planet.

Cox said that the most immediate prospect for finding evidence of life was on the moons of other planets closer to home.

Its not as accessible, unfortunately, as Europa [a satellite of Jupiter] or some of Saturns moons. Titan looks as though its got a subsurfaceocean now, and Enceladus throws liquid into space, so you can fly through that and see if its got organics in it, he said.

Cox also said it was plausible that humans could be the only complex life in our galaxy.

The biological bottlenecks on the way to multi-cellular organisms are so difficult to squeeze through that only a tiny fraction of the planetswhere life emerges will be home to anything more than the simplest biology, he said.

Cox added that science is telling us now that complex life is probably rare.

Printable version | Sep 2, 2015 3:19:03 PM | http://www.thehindu.com/sci-tech/science/alien-living-beings-on-pluto-likely-uk-scientists/article7600149.ece

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