Skeptophilia
Fighting Gullibility with Sarcasm, 6 days a week
Showing posts with label
Luyten's Star
.
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Showing posts with label
Luyten's Star
.
Show all posts
Monday, November 20, 2017
Messages to the stars
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Much has been made of the fact that our television and radio signals are expanding outward from the Earth at the speed of light, so the firs...
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