How the Universe expanded in 2011
The past year, perhaps, did not bring revolutionary unexpected breakthroughs in astrophysics. Nevertheless, the companions flew, the telescopes observed, theorists thought, and therefore many interesting results were obtained. We highlight the traditional twenty of the most interesting, in our opinion, plots. The study of planets and small bodies of the solar system is excluded from this list. Work was taken only from the archive of preprints arxiv.org.