Live coverage of the countdown and launch of a Soyuz rocket from French Guiana with Europe’s Sentinel 1B radar Earth observation satellite, France’s Microscope relativity probe and three CubeSats from Belgium, Italy and Denmark. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.
Live video coverage from Arianespace begins at 2045 GMT (4:45 p.m. EDT).
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