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- 144 If the astronauts on Apollo 11 had landed safely on the moon but could not take off, would there have been a rescue mission?
- 35 Why doesn't the sun reach its highest point overhead at exactly 12:00 noon?
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- 27 What is the purpose of these diversions in a natural gas line?
- 24 Is it possible for rivers to freeze completely and stop flowing?
- 21 Why was the initial theory of plate tectonics so controversial?
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Top tags (7)
10 Is agriculture on-topic? May 18 '17
7 what is a reasonable reputation count Jan 26 '18
6 Consistency in closing questions Jul 11 '15
5 Should pseudoscience questions be closed on sight? Feb 11 '15
3 Idea - make identification request posts off topic Oct 19 '18
2 Agrometeorology questions on topic? Mar 19 '15