Seven Earth-Sized Habitable Zone Planets Revealed Around Single Star

posted: 02/22/17
by: Eileen Marable

NASA announced today the discovery of the first known system of seven Earth-size planets around a single star. Particularly enticing to the scientific community is three of these planets are located in what's known as the "habitable zone," the area where a rocky planet could have liquid water.

Spotted by the Spitzer Space Telescope, this sets the new record for greatest number of habitable zone planets around a single star outside our solar system. While all seven of the planets could have liquid water, it's the habitable zone that astrobiologists focus on as the most likely to have the atmospheric pressure to support liquid water.

Liquid water is the key to life as we know it. This discovery could be a step towards discovering other forms of life in our universe!

Learn more from NASA's press release and their video below!

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