TRACES OF WATER DETECTED ON DISTANT PLANET | Bird watching safari


 

Water vapour has been detected in the atmosphere of a planet 124 light years - or 729 trillion miles - from Earth. The planet is about the size
This marks the first time that an exoplanet smaller than the size of Jupiter has been revealed to feature traces of water, according to the findings first published in the latest edition of the journal Nature.
Water vapor has been discovered on an exoplanet the size of Neptune – smaller than any previous discovery – paving the way for astronomers to use similar methods to identify Earth-like planets far beyond our solar system.
Analyzed using the Hubble Space Telescope, the Spitzer Space Telescope and the Kepler space observatory, the composition of the exoplanet’s atmosphere was found to be primarily hydrogen along with roughly 25 percent water vapor.
Known as HAT-P-11b, the exoplanet located 124 light years away was not described as a potentially Earth-like habitat by the study’s lead author, Jonathan Fraine, but the fact that water vapor was discovered at all was seen as a hopeful sign for the future.
Typically, warm planets smaller than Jupiter – such as HAT-P-11b – have been extremely difficult to analyze due to the abundance of clouds, which kept light from breaking through and giving scientists little to effectively examine, at least with current technology. Since there was no such interference on this planet, researchers were able to clearly determine that water vapor existed in the atmosphere.
If scientists can use similar methods to find water, though, they also believe that other elements necessary for life to thrive could be detected. Methane, which is primarily produced by living things on Earth, is one thing scientists are looking for – and a tool to more effectively identify it was unveiled earlier this summer.
The upcoming successor to the Hubble – the James Webb Space Telescope – could also make it much easier for scientists to look for water and other compounds. It will feature much more advanced equipment, meaning that it will be able to pick up signals much softer than what the Hubble can do right now.
Eliza Kempton from Iowa’s Grinnell College believes that the new telescope may even be able to help scientists analyze planets that more closely resemble the size of Earth.

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