... Kepler Discovers How Planets Move . ... Kepler was an assistant to the most accurate astronomical observer of the time, Tycho Brahe. Kepler was able to use Brahe's data.. Betelgeuse, Betelgeuse, Betelgeuse . ... Betelgeuse (sounds a lot like "beetle juice"), a red supergiant star about 600 light years distant, is seen in this Hubble Space Telescope image - the first direct picture of the surface of a star other than the Sun. ... Thermal Mars . ... TES data used.. ... Uranus Moon 18 . ...