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doit_the_clown doit_the_clown
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7 years ago
The first successful detection of signals from extraterrestrial civilizations was accomplished in which year?
A)   1985
B)   Never—no such signals have been detected yet.
C)   1999
D)   1960
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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discovererdiscoverer
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7 years ago
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doit_the_clown Author
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7 years ago
Thank you, thank you, thank you!
Cdfields
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Yesterday
Correct Slight Smile TY
Transonic
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2 hours ago
Thanks for your help!!
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