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Uploaded 02/23/2017


NASA’s Spitzer Space Telescope has revelaed the first known system of seven Earth-size planets around a single star. Three of these planets are firmly located in the habitable zone, the area around the parent star where a rocky planet is most likely to have liquid water.

The discovery sets a new record for greatest number of habitable-zone planets found around a single star outside our solar system. All of these seven planets could have liquid water — key to life as we know it — under the right atmospheric conditions, but the chances are highest with the three in the habitable zone.

The briefing participants were:

路 Thomas Zurbuchen, associate administrator of the Science Mission Directorate at NASA Headquarters in Washington

路 Michael Gillon, astronomer at the University of Liege in Belgium

路 Sean Carey, manager of NASA’s Spitzer Science Center at Caltech/IPAC, Pasadena, California

路 Nikole Lewis, astronomer at the Space Telescope Science Institute in Baltimore

路 Sara Seager, professor of planetary science and physics at Massachusetts Institute of Technology, Cambridge

(c)2017 NASA-JPL-Caltech | SCVTV
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