A Swedish-led team of astronomers used the NASA/ESA Hubble Space Telescope to analyse the multiple images of a gravitationally lensed type Ia supernova for the first time. The four images of the exploding star will be used to measure the expansion of the Universe. This can be done without any theoretical assumptions about the cosmological model, giving further clues about how fast the Universe is really expanding. The results are published in the journal Science.
The release, images and videos are available on:
http://www.spacetelescope.org/news/heic1710/
Kind regards,
ESA/Hubble Information Centre
The ESO Education and Public Outreach Department
20 April 2017
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