... Bright Stars and Dark Clouds . ... Well don't feel bad - this even happened to the bright young stars of the open cluster NGC 6520. On the left are the cluster's bright blue stars. Beneath Venus' Clouds . ... If the thick clouds covering Venus were removed, how would the surface appear? ... Venus: Earth's Cloudy Twin . ... If Venus weren't so cloudy it would be more similar to Earth. This picture by the Galileo spacecraft shows just how cloudy Venus is. ... Comet Hale-Bopp Fades . ...