Saturn, Cassini image
Saturn. Cassini spacecraft image of Saturn, its rings, and two of its moons Titan (upper right) and Tethys (bottom left). The rings, which consist of particles of nearly pure water ice, have become contaminated with meteoritic dust over time. It is this dust that causes differences in the rings' colours. The Cassini-Huygens spacecraft was launched in 1997 to investigate Saturn, its rings and its moons. This image was taken at a distance of 1.3 million kilometres from Saturn on 30th January 2008.
© NASA/JPL/SPACE SCIENCE INSTITUTE/SCIENCE PHOTO LIBRARY
Brill Windmill AA081475
BRILL WINDMILL, Windmill Street, Brill, Buckinghamshire. Brill Windmill overlooking a farmstead and Aylesbury Vale landscape. The mill has a late 17th century timber frame with weatherboard cladding and a circular 20th century brick base with a conical slate roof. Photographed by John Gay in 1963.
© Historic England
Landscape, Rural, Shadow, Silhouette
Jupiter with moons and their shadows
Jupiter and its moons, infrared Hubble Space Telescope image. This image shows a rare alignment, in which two moons are visible on the face of Jupiter, and the shadows of three fall across it as well. The white dot just above centre is Io, and Io's shadow is directly to its left. The blue dot at upper right is Ganymede, whose shadow is directly left of it on the left limb. At upper right is the shadow of Callisto. Callisto itself is out of frame at right. This image was taken by the Near Infrared Camera and Multi Object Spectrometer (NICMOS) on the HST on 28th March 2004.
© NASA/ESA/STSCI/E.KARKOSCHKA, U.ARIZONA/ SCIENCE PHOTO LIBRARY