Images Dated 19th December 2006

Sun and its planets

Sun and its planets. Artwork of the eight planets of the solar system arrayed from left to right in their order from the Sun (far left). The size of the Sun and planets is to scale. The four small, rocky planets of the inner solar system are Mercury, Venus, Earth and Mars. The four large, gas giant planets of the outer solar system are Jupiter, Saturn, Uranus and Neptune. In August 2006, Pluto (not shown) became a Dwarf planet. Planetary rings and moons, a solar flare and the asteroid belt (between Mars and Jupiter), are also shown. The Sun contains 99.9% of the mass of the solar system

© DETLEV VAN RAVENSWAAY/SCIENCE PHOTO LIBRARY

para-Dichlorobenzene molecule

para-Dichlorobenzene. Computer model of a molecule of the chlorinated aromatic para-dichlorobenzene (PDB). It is an organic chemical, and is used as a pesticide. It primary use is in mothballs, where it is a substitute for naphthalene (see A705/079). PDB is marketed under names such as Paramoth, Para crystals, and Paracide. It is a toxic substance that can kill through volatile substance abuse. The molecule consists of two chlorine atoms attached to a benzene ring. The molecule's chemical formula is C6.H4.Cl2. The atoms are shown as colour-coded spheres in this space-filled model: carbon (blue), hydrogen (gold), and chlorine (green)

© DR MARK J. WINTER/SCIENCE PHOTO LIBRARY

Sulphur-crested Cockatoo

DH-3944
Sulphur-crested Cockatoo
Beside the Barnett River, Gibb River Road, Kimberley, Western Australia
Cacatua galerita fitzroyi
This subspecies found in the Kimberley, far north Northern Territory and just into far northwest Queensland. Other subspecies in eastern Australia, New Guinea and the Bismarcks. Inhabits riverside vegetation and vine thickets.
Don Hadden
Please note that prints are for personal display purposes only and may not be reproduced in any way

© Don Hadden/ardea.com