On this day in 2014, NASA’s Kepler space telescope discovered the first Earth-sized planet – Kepler 186f – in the habitable zone of a star outside our solar system.
April 17, 2014: Kepler’s great discovery
December 21, 2020
Home of OtherSpace MUSH (Multi-User Shared Hallucination)
On this day in 2014, NASA’s Kepler space telescope discovered the first Earth-sized planet – Kepler 186f – in the habitable zone of a star outside our solar system.