Images Dated 4th November 2003

Nematode worm, SEM

Nematode worm, coloured scanning electron micrograph (SEM). Nematode worms are small worms that are unsegmented. Depending on the species, a nematode worm may be parasitic or free-living. The parasitic nematode worms are found in many plants and animals. Free-living nematode worms are found in water and soils. A nematode worm is generally 1-2 millimetres long

© LONDON SCHOOL OF HYGIENE & TROPICAL MEDICINE/SCIENCE PHOTO LIBRARY

N.A., USA, Hawaii, Maui, Haleakala Nat'l Park Mist rises over edge of crater

USA, Hawaii, Maui, Haleakala National Park, Mist rises over edge of crater behind moon-like landscape with dry grass

© John and Lisa Merill / Danita Delimont, Agent

Action, Burn, Char, Cloud, Crater, Danita Delimont, Environment, Flora, Haleakala, Hawaii, Landscape, Maui, Mist, National Park, Natural Formations, Nature, North America, Np, Park, Plant, Plant Life, Public Land, Rf, Usa, Volcanic, Volcano

Star birth

Star formation. Image 2 of 2. Artwork of the first ignition of a new star after it coalesced from a cloud of gas and dust. Stars form when gas clouds contract under their own gravity. The gas increases in density and temperature as it contracts, eventually becoming hot enough for nuclear reactions to start. The initial ignition of a new star then blows away much of the surrounding material. Gas clouds rotate as they contract, which flattens the material into a disc. In the surrounding disc of gas and dust (white), planets and other bodies can form. For an image of this star before it had formed from the gas cloud, see R590/100

© TAKE 27 LTD/SCIENCE PHOTO LIBRARY