AstrophisiX Men

“AstrophisiX Men” by kgullholmen

Neil deGrasse Tyson, Albert Einstein, Carl Sagan, and Stephen Hawking: the X-Men of astrophysics.

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AstrophisiX Men

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Hashtags: #alberteinstein #astrophysicist #astrophysics #carlsagan #davideberhardt #kgullholmen #neildegrassetyson #stephenhawking