250 years of planetary detection in 60 seconds
Thursday, February 12, 2015 - 10:30
in Astronomy & Space
Early astronomers realized some of the "stars" in the sky were planets in our Solar System, and really, only then did we realize Earth is a planet too. Now, we're finding planets around other stars, and thanks to the Kepler Space Telescope, we're able to find planets that are even smaller than Earth.