TOP GALLERY
The world's most spectacular impact craters
12:49 23 September 2009
Approximately 150 impact craters are known on Earth a few spectacular examples are visible with aerial photography, satellites or instruments that can peek beneath the surface. – see them here
LATEST GALLERIES
Solar cells in unusual places
12:39 23 September 2009
The latest concepts in solar cell design are now on show in London – see them here
'Night-shining' clouds seen from Earth and space
11:53 22 September 2009
Noctilucent clouds float much higher than other clouds, allowing them to shine when the sun is below the horizon – see a gallery of the mysterious, shimmering clouds here