Home > World of the Strange – Weird Science > How big is the universe … compared with a grain of sand? – video.

How big is the universe … compared with a grain of sand? – video.

  •  Monday 11th February 2013    Source: Glasshead/Newton  Length: 6min 44sec   Find Video Here:-

You’ll never get your head around how big the universe is,’ warns astronomer Pete Edwards of the University of Durham in this film about measuring astronomical distances. ‘There are as many stars in the universe as there are grains of sand on the Earth.’ So how far is a light year? And supposing our galaxy were the size of a grain of sand, how big would the universe be?

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