ALMA rewrites history of the Universe's stellar baby boom

Mar 2013: ALMA, a revolutionary radio telescope, has opened its eyes and McGill physicists, as a part of the South Pole Telescope collaboration, have used the new telescope to look at some of the most distant and active galaxies of the Universe. The red arcs show ALMA observations of dust emission from a starburst galaxy more than 11 billion light years away. The image of the galaxy is magnified and broken into multiple images due to the effect of the gravity of an intervening galaxy (seen in blue, Hubble Space Telescope) on the light of the background galaxy, an effect referred to as “gravitational lensing”. (Yashar Hezaveh et al. 2013, Joaquin Vieira et al. 2013, Axel Weiss et al. 2013). The McGill press-release can be found here.