system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:How does a spacecraft like Voyager I and Voyager II still contact earth from so far away.

What  kind of communication device does it use? How does it reach so far?
gpt
Interesting fact of the day: Radio waves are the same as visible light waves. They're just at a much lower frequency.

Radio only goes so far on Earth's surface because there's so much crap in the way (ie: air, buildings, etc.) In space, there's nothing to get in the way.