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RE: The Metamorphosis of Cosmological Perspective From The 16th Century Forward
ESA space history tweeted @ 22 Jul 2016 - 09:22 UTC
#OTD 22 July 1784 Friedrich Bessel born, 1st to use parallax in calculating distance to star messier.seds.org/xtra/Bios/bess… https://t.co/rOJbdGiss3
You're not being helpful, more of a pest!
Exactly.