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Title: An inhabitant of a planet orbiting the star Betelgeuse observes the flash from the first nuclear ... Post by: doit_the_clown on Mar 16, 2017 An inhabitant of a planet orbiting the star Betelgeuse observes the flash from the first nuclear weapon on the Earth, exploded in July 1945. If this extraterrestrial being were to send a signal to the Earth immediately to confirm this sighting by exploding a bomb of equivalent brightness, and astronomers on the Earth were watching his planet, when would they expect to see this flash?
A) 2076 A.D. B) 2207 A.D. C) 2799 A.D. D) 2372 A.D. Title: Re: An inhabitant of a planet orbiting the star Betelgeuse observes the flash from the first nuclear ... Post by: hyponotica on Mar 16, 2017 Content hidden
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