Radio astronomy

So imagine you have a book with pictures in it. You can see the pictures with your eyes because they reflect light, right? But what about aliens on another planet? They may not have eyes like us to see pictures. They need something else to see stuff in the universe. This is where radio waves and radio astronomy come into play!

Radio waves are like invisible light that we can't see with our eyes, but scientists can use big dishes called antennas to collect radio waves that come from space. These radio waves are like a message in a bottle from far away parts of space. Scientists take these messages and use them to learn new things about the universe.

Radio waves can bounce and travel very far in space compared to light. So by using radio astronomy, scientists can learn about things in space that they can't see with their eyes or regular telescopes. They can see things like black holes, stars, and other galaxies that are too far away for us to see with just regular telescopes.

And what's even cooler is that there are different types of radio waves that give off different messages. So scientists can learn new things about the universe by studying different types of radio waves.

In summary, radio astronomy is like using a special antenna to collect messages in a bottle from space that we can't see with our eyes. And by studying these messages, scientists can learn new things about the universe like black holes and galaxies that are too far away for us to see with regular telescopes.