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NASA'S discovery of potential habitable planets

posted Mar 16, 2017, 7:46 AM by Skye Davis   [ updated Mar 16, 2017, 8:13 AM by Mr R McClean ]

NASA'S Spitzer space telescope has revealed the first known system of seven earth-sized planets around a single star.The planets are located in the habitable zone,the area around the parent star where the rocky planets are most likely to have liquid water.

The new discovery sets a record for the most habitable planets around one star.But all seven planets could have liquid water-but the chances are highest with the three in the habitable zone.

This system is called TRAPPIST-1.In may 2016,researchers announced that they discovered two planets in the system,then this year using NASA'S telescope Spitzer discovered five other planets,making the whole system.At about 40 light-years,the system planets are relatively close to us.