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7 new Earth-like exoplanets discovered, NASA announces

This illustration shows the possible surface of TRAPPIST-1f, one of the newly discovered planets in the TRAPPIST-1 system. Scientists using the Spitzer Space Telescope and ground-based telescopes have discovered that there are seven Earth-size planets in the system. (Credits: NASA/JPL-Caltech)

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7 new Earth-like exoplanets discovered, NASA announces
By Rob Verger

Talk about lucky number seven. Astronomers have discovered not one, not two, but seven Earth-sized planets orbiting a star called TRAPPIST-1.

What’s more, three of them are in the habitable zone— the happy place where liquid water can exist on rocky planet’s surface, where it’s not too hot or cold.

“The discovery gives us a hint that finding a second Earth is not just a matter of if, but when,” Thomas Zurbuchen, associate administrator of the Science Mission Directorate at NASA Headquarters, said at a news conference announcing the discovery. This is the first time astronomers have found so many Earth-sized planets circling the same sun.

“This is very promising for the search for life outside our solar system,” said Michael Gillon, astronomer at the University of Liege in Belgium, during the press conference.

source: FOX News Scirnce

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