The Nightly News
An Astronomy blog by Joe Bauman, Salt Lake City
Blog 60: Secrets of the first galaxies
Joe Bauman
27
August
2018

More Posts

  1. Blog 62: Astronomy in the time of fire
    17 Sep, 2018
    Blog 62: Astronomy in the time of fire
    Utah is suffering the worst summer in many years, in terms of conditions for astronomy. Wildfires that are exacerbated or caused by global warming have been burning up the West, including this state, contributing to a sometimes-dangerously smoky atmosphere. Smoke will soften astronomy images into blurred messes and throw off color balance. When I found sites where the smoke had cleared, by an unfortunate coincidence windy skies made the stars twinkle and bounced my telescope around too wildly
  2. 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
  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
  4. Blog 58: Nature's geometry
    07 Aug, 2018
    Blog 58: Nature's geometry
    The first time I read Walden all the way through, I thought Henry David Thoreau was stretching a comparison beyond its breaking point. In the chapter "Spring," he writes, with quotations chosen from two separated paragraphs, "Few phenomena gave me more delight than to observe the forms which thawing sand and clay assume in flowing down the sides of a deep cut on the railroad through which I passed on my way to the village. ... Innumerable little streams overlap and interlace with one another,