Sunday, August 26, 2018

Astronomer Robert Julius Trumpler holding one of the glass photographic plates from the 1922 Wallal Solar Eclipse Expedition that confirmed the prediction from Einstein’s Theory of Relativity that the sun’s gravitational field would bend light from nearby stars [499x525]


http://bit.ly/2MLm5TB via /r/spaceporn http://bit.ly/2Ls0Pxp