A team of astronomers used data from both the NASA/ESA Hubble Space Telescope and ESA’s Gaia satellite to directly measure the 3D motions of individual stars in a nearby galaxy. The achieved accuracy is better than anything previously measured for a galaxy beyond the Milky Way. The motions provide a field test of the currently-accepted cosmological model and also measure the trajectory of the galaxy through space. The results are published in Nature Astronomy.
The release, images and videos are available on:
http://www.spacetelescope.org/news/heic1719/
Kind regards,
ESA/Hubble Information Centre
The ESO Education and Public Outreach Department
27 November 2017
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