Galaxy: Mapping the Cosmos

The numbers involved when it comes to discussing stars, galaxies and the inconceivably vast tracts of empty space between them are staggering. With hundreds of billions of galaxies in the observable universe, all of varying shapes, sizes and ages - each containing hundreds of billions of suns - at first glance our Universe appears frustratingly unknowable, and yet it is captivating to explore. As a species we have only recently come to appreciate that our Milky Way is just one of myriad... Voir plus