In 1974,a radio message was sent out from the Arecibo observatory in Puerto Rico.How far has it gotten,approximately?
A)just beyond our Solar System
B)not even to the nearest stars
C)just a miniscule fraction of the distance across the Milky Way
D)almost to the center of the Milky Way
E)beyond the Milky Way,to the Andromeda galaxy

Question

Quizplus · Accepted Answer

The Arecibo message, sent in 1974, has been traveling for nearly 50 years at the speed of light. This distance is only a tiny fraction of the Milky Way's diameter, which is about 100,000 light-years across.

In 1974,a Radio Message Was Sent Out from the Arecibo