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Travel through a massive, space-time warping cluster of galaxies, captured by Hubble. Known as Abell 209, this galaxy cluster's immense mass is strong enough to bend the fabric of space-time itself and create warped and magnified images of background galaxies and stars in a process called gravitational lensing. This effect can be seen as the streaky, slightly curved galaxies within the cluster’s golden glow. Abell 209 is located a whopping 2.8 billion light-years away. Music credit: "Star Bound"