The Nightly News
An Astronomy blog by Joe Bauman, Salt Lake City
Blog 29: Galaxies on the wall
Joe Bauman
27
September
2017

More Posts

  1. Blog 61: The Moon
    07 Sep, 2018
    Blog 61: The Moon
    On September 30, 1854, readers of the Illustrated London News were treated to an astonishing view of something they had seen all their lives but never in such detail, the Moon. Assembled from photographs by John Hartnup, astronomer at the Liverpool Observatory, and by the Photographic Society of Liverpool, the double-page woodcut showed maria, craters, mountain ranges and debris rays. Most of these geological features weren't well understood at the time. Speaking of a lecture by Professor John
  2. Blog 60: Secrets of the first galaxies
    27 Aug, 2018
    Blog 60: Secrets of the first galaxies
    The first galaxies formed in two stages, according to a scientific paper published Aug. 16 -- and some of them remain in the Milky Way's orbit. Mysterious "dark matter" played a vital role in the process, the paper maintains. Dark matter is the name given to material or an effect that was present after the Big Bang and about which little is known other than its gravitational pull on ordinary matter. Findings are presented in "The Imprint of Cosmic Reionization on the Luminosity Function of
  3. Blog 59:  Pulsars
    17 Aug, 2018
    Blog 59: Pulsars
    I remember the discovery of pulsars; or maybe I don’t recall the actual announcement but discussions about them soon afterwards. With the passage of half a century, it’s hard to sort out. Word came in February 1968 that scientists had detected radio beacons in the cosmos, of the strangest type ever recorded, signals that repeated rapidly and at precise intervals. Nobody could resist wondering if the signals were the product of a spacefaring civilization. The findings came through the operation