The Spitzer Space Telescope has clocked the universe's expansion with one of the most precise speedometers yet, according to Nasa.
The edge of space is blasting outwards at the rate of around 74.3 kilometres per second per megaparsec; a megaparsec is about three million light-years in length.
Nasa initially announced the results 3 October, but clarified it a few days later to include mention of an independent study from the United States' Space Telescope Science Institute (STSCI) in Baltimore, Maryland.
By: Elizabeth Howell, Edited by: David Cornish
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via Wired.co.uk
http://www.wired.co.uk/news/archive/2012-10/16/spitzer-universe-expansion-rate
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