2.5-Billion-Pixel Andromeda Galaxy Panorama Worth The Decade Of Hubble Observations IFLScienceNASA’s Hubble Traces Hidden History of Andromeda Galaxy Science@NASAPanorama of our nearest galactic neighbor unveils hundreds of millions of stars EurekAlertPanorama of Andromeda galaxy unveils hundreds of millions of stars Phys.orgAndromeda galaxy: The violent history of our closest cosmic neighbor Earth.com