How can we talk to the stars?

How can we talk to the stars?If other beings existed in space, we could talk to them via radio waves, which travel at the same speed as light. Astronomers have begun t listen for possible incoming radio messages from the stars, although nothing has been heard so far. In 1974 the first deliberate radio message from Earth was beamed towards as star cluster called M13 in the constellation of Hercules. Even if there is anyone at home to receive the message, and even if they reply immediately, M13 is so far away that we will not hear from them until about the year AD 50,000.

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