Kepler 442b is an Earth-sized exoplanet orbiting within the habitable zone of the K-type main sequence star, Kepler-442, around 1,206 light years from Earth in the Lyra constellation. In 2009, NASA's Kepler spacecraft was observing stars on its photomete
It was discovered in 2015, and its discovery was announced. The planet was discovered by NASA’s Kepler spacecraft using the transit method, which measures the dimming effect caused by a planet as it passes in front of its star. On January 6, 2015, NASA announced the confirmation of the ...