jul 132013
 
Exoplanet HD 189733b Appears to be Azure Blue

  Astronomers using the NASA/ESA Hubble Space Telescope have, for the first time, determined the true color of a planet orbiting another star. If seen up close this planet, known as HD 189733b, would be a deep azure blue, reminiscent of Earth’s color as seen from space. This illustration shows HD 189733b, a huge gas giant that orbits very [continue reading]

jun 032012
 
Astronomers Confirm 'Evaporating' Planet Around Nearby Star

  Astronomers from The University of Texas at Austin and Wesleyan University have used the Hobby-Eberly Telescope at UT Austin’s McDonald Observatory to confirm that a Jupiter-size planet in a nearby solar system is dissolving, albeit excruciatingly slowly, because of interactions with its parent star. Their findings could help astronomers better understand star-planet interactions in [continue reading]