Images Dated 31st January 2008

Full Moon

Full Moon. The Moon appears full when it is on the opposite side of the Earth from the Sun during its orbit, when it presents its full sunlit face to Earth. The lunar hemisphere that faces Earth has bright highlands and dark seas, or maria, which are lowland plains full of dark solidified lava. Several large, bright craters are also seen. At lower centre is Tycho, whose rays of ejected material cover much of the hemisphere. At centre left is bright Copernicus with the slightly fainter Kepler just left and below it. Photographed from California, USA, on 2 March 2007

© JOHN SANFORD/SCIENCE PHOTO LIBRARY

Cholera toxin, molecular model

Cholera toxin. Molecular model of the secondary structure of cholera enterotoxin (intestinal toxin). The molecule consists of two subunits, A (top) and B (bottom). The B subunit, which is a pentamer, binds to intestinal epithelial cells, allowing the toxin to enter them. This toxin is produced by Vibrio cholerae bacteria, the causative agent of cholera, an infection of the small intestine. It causes diarrhoea and severe dehydration, which can be fatal if left untreated

© DR MARK J. WINTER/SCIENCE PHOTO LIBRARY

Book-Shrine or Cumdach of Molaise, c.1001-1025 (engraving) (b&w photo)

XJF120797 Book-Shrine or Cumdach of Molaise, c.1001-1025 (engraving) (b&w photo) by English School, (19th century); Private Collection; (add.info.: originally housed St. Molaise's Gospels;); English, out of copyright

© Bridgeman Images

Artifact, Book, Box, Celtic, Christian Artefact, Cover, Crate, Cross, Filigree, Gold, Gospel, Irish, Medieval, Reliquary, Shrine, Symbols Of The Evangelists, Vessel