Each Planet Is Unique, Every 100 Billion+ of Them
Credit | NASA/JPL-Caltech |
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We now believe there is at least one planet for every star in our galaxy. This could mean as many as 100 to 400 BILLION planets in our galaxy alone. This major finding from the Kepler mission, launched in 2009, reveals a crowded galaxy and the sheer magnitude of potential discoveries: strange worlds we never thought could exist, and maybe one day, a world like our own.