Images Dated 31st October 2003

Grizzly Bear standing (Ursus arctos), Wasatch NF, Utah, IC

© Greenberg, Phyllis / Animals Animals/Earth Scenes

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Sojourner on the surface of Mars

Sojourner. Mars Pathfinder mosaic image of the robotic Sojourner vehicle on the surface of Mars near the rock known as "Barnacle Bill" (at centre left). "Barnacle Bill" was the first rock to be studied by Sojourner with its Alpha-Proton X-Ray Spectrometer (APXS). Sojourner also carries a high-resolution camera to study rocks. The rover weighs about 9 kilogrammes, is 63 centimetres (cm) long and 48cm wide. It is powered by a solar panel which will allow for a few hours movement per day, and is controlled by an operator on Earth. Image taken by the Imager for Mars Pathfinder (IMP) on the third Martian day (Sol 3) that it spent on Mars since it landed on 4 July 1997

© NASA/SCIENCE PHOTO LIBRARY

3-D topography of Mars

Mars global topography. Three-dimensional map of Mars showing the topography of the entire planet. The south pole is at the bottom of the left image, with the north pole at the top of the right one. The colour-coding shows the height of the terrain relative to the average elevation at the equator. Yellow areas are of average height while red to white areas higher and green to blue lower. Mars enormous volcanoes can be seen at the left of the right image. This data was recorded by the Mars Orbiter Laser Altimeter (MOLA) on board the Mars Global Surveyor. 27 million measurements accurate to within 13 metres were made in 1998 and 1999 by timing laser pulses sent to Mars surface

© NASA/SCIENCE PHOTO LIBRARY