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Home > All Images > 1997 > September > 30 Sep 1997

Images Dated 30th September 1997

Choose from 19 pictures in our Images Dated 30th September 1997 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Optical image of comet Hale-Bopp Featured 30 Sep 1997 Image

Optical image of comet Hale-Bopp

Comet Hale-Bopp. Optical image of comet Hale-Bopp showing its gas and dust tails. Hale-Bopp was one of the brightest comets of the 20th century. Its gas or "ion" tail (stretching to upper left) consists of ionised glowing gas blown away from the comet head by the solar wind. The dust tail (stretching to upper right) consists of grains of dust pushed away from the comet head by the radiation of sunlight. Comets have a nucleus of ice and dust. As they approach the Sun their surface evaporates, releasing a tail millions of kilometres long. Comet Hale-Bopp was discovered on 23 June 1995. Photographed in March 1997

© CHRIS MADELEY/SCIENCE PHOTO LIBRARY