Habitable Exoplanet Discovery
On 22 February 2017, scientists working at the California Institute of Technology for NASA, using the Spitzer Space Telescope, announced the discovery of seven potentially habitable exoplanets orbiting around a single star –a red dwarf at just 39 light years away.
This star is small, and shines with a feeble red light. The planets are bunched together to take advantage of this light and heat.
All of these seven Earth-size 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 located within the habitable zone of the TRAPPIST-1 solar system