Friday, December 6, 2013

Hubble detects water in the atmosphere of exoplanets 5 - TF1


This is a step in the exploration of planets outside our solar system, although there is still a long way to go to find hope in life. The Hubble Space Telescope has detected traces of water in the atmosphere of exoplanets five , reports a study published Tuesday in the American journal The Astrophysical Journal.

This water vapor was detected by the Wide Field Camera 3 of the Hubble telescope of NASA . The apparatus could measure the wave lengths of light emitted by the stars to identify the presence of water. “Detect the atmosphere of an exoplanet is extremely difficult. But we managed to get a clear signal and it is water,” said L. Drake Deming of the University of Maryland, quoted by Mail Daiy.

temperature too high

These planets, named WASP-17b, HD209458b, WASP-12b, WASP-19b and XO-1b, all have a size comparable to or greater than Jupiter and have an extremely high temperature because they are close to their star. This means that they have virtually no chance of harboring life.

But hope remains enabled for since the early 1990s, a thousand planets orbiting stars other than our Sun have been discovered, according to Nasa. And recent studies suggest that it could be several billions in the universe.

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