Did you know Voyager 1's signals took 20 years to reach us?

Voyager 1

Did you know Voyager 1's signals took 20 years to reach us?

Imagine you're sending a message to a friend across the globe. If you sent it by radio waves, it would take a long time to arrive.

Radio waves travel incredibly fast, like light. So, a message sent from Voyager 1 travels at light speed, taking about 20 years to reach Earth.

Example

If you sent a radio message from Voyager 1, it would arrive on Earth after 20 years.

Remember this

Radio waves travel at the speed of light, taking about 20 years for signals from Voyager 1 to reach Earth.

Text adapted from Wikipedia, licensed under CC BY-SA 4.0.

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