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]

aug 312012
 
Walls of Lunar Crater Hold Patchy Ice

  Small patches of ice could make up at most five to ten percent of material in walls of Shackleton crater. Shackleton is an impact crater at the south pole of the Moon. The crater is more than 12 miles wide and two miles deep (21 km in diameter and 4.2 km deep). Image Credit: [continue reading]

jun 212012
 
Water Ice at the Moon’s South Pole

  Scientists map Shackleton crater, whose unusually bright floor may hint at the presence of ice. Shackleton is an impact crater at the south pole of the Moon, that may have water ice. The crater is more than 12 miles wide and two miles deep (21 km in diameter and 4.2 km deep).   If [continue reading]