... Although the scene may appear somehow supernatural, nothing more unusual is occurring than a setting Sun and some well placed clouds. ... In the above deep image, faint wisps and sheets of dust and gas are particularly evident. Comet NEAT Passes an Erupting Sun . ... This delightfully detailed false-color image of Saturn was taken in January 1998 by the orbiting Hubble Space Telescope. ... But Mars is too cold and its atmosphere too thin for liquid water to exist on the surface. ... 1997 1998 . ...