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rudy235 · 2020-11-23, 04:57

How many of this forum have actually visited the Arecibo Radio Telescope?
I was there in November 2013.

2020-11-23, 04:57	#17
rudy235 Jun 2015 Vallejo, CA/. 7·139 Posts	How many of this forum have actually visited the Arecibo Radio Telescope? I was there in November 2013.