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  1. Herschel spies five new galaxies with cosmic ‘zoom lens’

    Publishing date:

    August 20, 2010

    Thanks to a technique called ‘gravitational lensing’, Europe’s Herschel space telescope, in orbit since 2009, has been able to detect and characterize galaxies as they were 10 billion years ago.

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  2. Les maîtres du temps

    Publishing date:

    April 14, 2014

    Selon la théorie de la relativité d'Einstein, le temps est "élastique" : il s'écoule plus ou moins vite ! Sera-t-il un jour possible de voyager dans le temps ?

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