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hussainizzle hussainizzle
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3 weeks ago

Suppose that SETI researchers discovered a radio signal coming from a star in the direction of the centre of the Milky Way that was about 10% closer to the centre than the Sun. If humans sent a reply to this signal immediately, and the aliens replied when they got our message, how long would it take before the alien reply reached Earth?



a few years



several decades



thousands of years



a few hundred years

Textbook 
ASTRO

ASTRO


Edition: 3rd
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inhibitor128inhibitor128
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3 weeks ago
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hussainizzle Author
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3 weeks ago
This helped my grade so much Perfect
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I appreciate what you did here, answered it right Smiling Face with Open Mouth
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Thanks for your help!!
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