Images Dated 1st July 2005

False-colour of Face on Mars

False-colour of "Face" on Mars. Viking 1 Orbiter photograph of surface features in the northern latitudes of the planet Mars. The photograph shows eroded mesa- like land formations. The huge rock formation resembling a human head is formed by shadows giving the illusion of eyes, nose & mouth. It is 1.5 kilometres (1 mile) across. The speckled appearance of the image is due to "bit errors", which are exaggerated by the enlargement of the photograph. The picture was taken on 25 July 1976

© Nasa/Science Photo Library

Ceremonial Honor Guard members stand at port arms during a burial at sea ceremony

Pacific Ocean, June 30, 2005 - Ceremonial Honor Guard members stand at port arms during a burial at sea ceremony held aboard the Nimitz-class aircraft carrier USS Ronald Reagan (CVN-76)

© Stocktrek Images

Blurred, Brass Instrument, Burial At Sea, Ceremonial Guards, Ceremony, Color Image, Day, Honor, Honor Guards, Horizontal, In A Row, Instrument, Medium Group Of People, Memorial Service, Memories, Military, Music, Musical Instruments, Noise, Outdoors, Performer, Photography, Port Arms, Remembrance, Selective Focus, Standing, Tradition, Trumpet, Uss Ronald Reagan

Ciliate protozoan, SEM

Ciliate protozoan. Coloured scanning electron micrograph (SEM) of a ciliate protozoan. This tiny single-celled organism is found in water. It feeds on bacteria and decaying organic matter, which it filters through membranelles in its primitive mouth, known as a buccal cavity (top). The membranelles, rows of fused cilia (short microscopic hairs), are also used for locomotion. Magnification: x2250 when printed at 10 centimetres wide

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY