The Nightly News
An Astronomy blog by Joe Bauman, Salt Lake City
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  1. Blog 72: Depth
    27 Dec, 2018
    Blog 72: Depth
    Sometime in the early-to-mid 1960s, when I was a teenager on the American missile base at Kwajalein, Marshall Islands, I snorkeled beyond the drop-off on the lagoon side; this is the descending slope where the water gets deeper the farther you swim from the reef. The sandy bottom tilts gradually until suddenly it plunges. Beyond that, the lagoon is too deep to see the bottom. Shimmering dim green shafts of sunlight sliced down all around me, reaching farther and farther into the depths, until
  2. Blog 46: Getting a bang out of cosmology
    07 Apr, 2018
    Blog 46: Getting a bang out of cosmology
    Here’s a riddle. Most astronomers agree that the Big Bang, the start of our universe, began about 13.8 billion years ago. So how would you describe the period 14 billion years ago? Was everything dark? Did a void or a vacuum exist? No, is the scientific consensus. While we may discuss conditions 12 billion or nearly 13.8 billion years in the past, the phrase 14 billion years ago is meaningless. No such period existed. *** The standard Big Bang theory Time itself began, just as the entire

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