jul 192013
 
Snow in an Infant Planetary System

  The sight of a snowfall can thrill children, but the first-ever snow line seen around a distant star gives astronomers an even greater thrill because of what it reveals about the formation of planets and our Solar System’s history. Artist concept of snow line in TW Hydrae showing water covered ice grains in the [continue reading]

okt 012012
 
Snow And Ice on Oven-Hot Venus?!

  Venus Express has spied a surprisingly cold region high in the planet’s atmosphere that may be frigid enough for carbon dioxide to freeze out as ice or snow. This image of the Venus southern hemisphere illustrates the terminator – the transitional region between the dayside (left) and nightside of the planet (right). The south [continue reading]