Forty-Five Earth-like Worlds in Habitable Zones: Spotlight on TRAPPIST-1 and the 2029 ELT Milestone
To the point
Cornell scientists at the Carl Sagan Institute say 45 Earth-like worlds lie in habitable zones among about 6,000 exoplanets, including four nearby TRAPPIST-1 planets—d, e, f and g—about 40 light-years away, and Lisa Kaltenegger notes that focusing on the most likely hosts could speed up the search as the Extremely Large Telescope arrives in 2029 to look for signs of life.
