Where lies the land to which the ship would go? Far, far, ahead is all her seamen know. —Arthur Hugh Clough Astronauts heading for some distant planet may not be quite as ignorant as Clough’s seamen.
The Nature Network on MSN
How astronomers measure distance without travelling anywhere
It’s a bit mind-bending to realise that everything we know about the scale of the universe comes from people stuck […] ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback