Skeptophilia
Fighting Gullibility with Sarcasm, 6 days a week
Showing posts with label
Perseus
.
Show all posts
Showing posts with label
Perseus
.
Show all posts
Saturday, November 6, 2021
The ghoul's head and the three-body problem
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Ever heard of Algol ? Known to astronomers as Beta Persei, it's the second-brightest star in the constellation of Perseus. It was singl...
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