90,000+ galaxies in your pocket

Credit: B. Granett, L. Guzzo & the VIPERS Collaboration

For nearly eight years, the VIsible MultiObject Spectrograph (VIMOS) on ESO’s Very Large Telescope (VLT) in Chile has been piecing together a three-dimensional map of galaxies in two patches of the southern sky. A total of 440 hours of observing time has gone into measuring the spectra of more than 90 000 distant galaxies, producing a map of a 24-square-degree region on the sky, out to a distance corresponding to when the Universe was around half its current age. … (ESO)

Credit:
B. Granett, L. Guzzo & the VIPERS Collaboration

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