Images Dated 31st October 2008

Ceres, artwork

Ceres. Computer artwork, based on Hubble Space Telescope (HST) images, of the dwarf planet Ceres (1 Ceres) with the Sun in the distance. Ceres has a diameter of 950 kilometres. This makes it the largest object in the asteroid belt and the smallest identified dwarf planet in the solar system. A dwarf planet is an object large enough to be spherical due to its gravity but which doesn't dominate its orbit around the Sun. Ceres is one of many objects in the asteroid belt. The surface of Ceres is thought to consist of a mixture of water ice, and various hydrated minerals like carbonates and clays

© CHRIS BUTLER/SCIENCE PHOTO LIBRARY

USA, Utah, Zion National Park. Waterfall with cottonwood trees along Riverside Walk in The Narrows

USA, Utah, Zion National Park. Waterfall with cottonwood trees along Riverside Walk in The Narrows. Credit as: Nancy Rotenberg / Jaynes Gallery / DanitaDelimont

© Nancy Rotenberg / Jaynes Gallery / DanitaDelimont.com

Autumn, Canyon, Cottonwood, Danita Delimont, Flowing, Jaynes Gallery, Nancy Rotenberg, Red Rock, Riverside Walk, Rock, Stream, The Narrows, Tree, Usa, Utah, Water, Waterfall, Yellow, Zion, Zion National Park

Young male elk with horns eating grass, National Bison Range, Charlo, Montana, USA

The elk, or wapiti (Cervus canadensis), is one of the largest species within the deer family, Cervidae, in the world, and one of the largest land mammals in North America and Eastern Asia. Elk range in forest and forest-edge habitat, feeding on grasses, plants, leaves, and bark. Male elk have large antlers which are shed each year. Males also engage in ritualized mating behaviors during the rut, including posturing, antler wrestling (sparring), and bugling, a loud series of vocalizations that establishes dominance over other males and attracts females

© William Perry / DanitaDelimont.com