PDA

View Full Version : How Did We Find the Distance to the Sun?



Fraser
2015-Jan-04, 11:20 PM
How far is the Sun? It seems as if one could hardly ask a more straightforward question. Yet this very inquiry bedeviled astronomers for more than two thousand years. Certainly it’s a question of nearly unrivaled importance, overshadowed in history perhaps only by the search for the size and mass of the Earth. Known today […]

More... (http://www.universetoday.com/117843/how-did-we-find-the-distance-to-the-sun/)