The Science Behind the "Blood Moon Tetrad" and Why Lunar Eclipses Don't Mean the End of the World
By David Dickinson
April 7, 2014
62
0
85
8
59
0
69
4
60
0
61
0
77
6
60
0
83
4
69
4
77
6
87
8
61
0
79
7
60
0
64
0
62
0
57
0
81
5
63
1
David Dickinson
David Dickinson is a freelance science writer and long-time sky watcher. He has built telescopes and observatories, chased eclipses, and travels and observes with his wife, Myscha, on a mission to get ‘eyes on the sky’ worldwide. His books The Universe Today Ultimate Guide to Observing the Cosmos, The Astronomer’s Deep-Sky Field Guide and science fiction short stories are available here.