Salisbury Cafe Sci banner image

Tag: cosmology

  • A History of the Universe in 60 Million Galaxies

    A History of the Universe in 60 Million Galaxies

    The March talk will be given by Dr Seshadri Nadathur who will be talking about his research into the history of the universe and fundamental physics. In this talk he will describe the Dark Energy Spectroscopic Instrument, or DESI, which is a survey using a telescope on a desert mountaintop to create a precise map…

  • The First Supermassive Black Holes in the Universe

    The First Supermassive Black Holes in the Universe

    Although supermassive black holes (SMBHs) are found at the centers ofmost massive galaxies today, over 200 quasars (actively accretingSMBHs) have now been discovered at redshifts z > 6, less than abillion years after the big bang.  Their discovery beginning in 2003posed serious challenges to paradigms of cosmic structure formationbecause it was not understood how such…