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Stephen Hawking, a renowned astro-physicist, speaks at an event in Washington, D.C. on April 21, 2008.
Editorial photograph of Stephen Hawking in Washington, United States on 21 April 2008. Rights: STOCK IMAGE UK RIGHTS ONLY. Available from Big Pictures Archive for rights-managed licensing; quotes depend on usage, territory, and duration.
21 April 2008
Washington, United States
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Big Pictures Archive
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STOCK IMAGE UK RIGHTS ONLY
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