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Einstein lecturing on relativity at Sorbonne - Paris, 1922. (via)
The Butterfly The Butterfly or IC1318, the diffuse emission nebula surrounding Sadr or Gamma Cygni. Sadr lies in the center of Cygnus’s cross. One of the surrounding nebulous regions; others include the Crescent Nebula. It contains many dark nebulae in addition to the emission diffuse nebulae. Copyright: Jean-Baptiste Gordien
1 year ago 496 notes Reblog
fuckyeahspaceexploration: Probably the most iconic space exploration photo ever. I’ve gone this long without blogging it, so here it is. Does it even need a description?
Astral Lagoon Copyright: Emilio Rivero Padilla
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