Meaning: Satellites travel around Earth and send us information.
Choice of Words: Satellites move around Earth and send information back to us.
Alternative Expressions
Space machines circle the Earth, sending info back home.
Meaning: This means that satellites go around the Earth and send information back to us on Earth.
Choice of Words: Space machines are satellites. Circle means that they go around something, like the Earth. Sending means that they are sending something, like info. Info is short for information.
Earth's helpers travel in circles, giving us info.
Meaning: This means that satellites go around the Earth and send information back to us on Earth.
Choice of Words: Earth's helpers are satellites. Travel in circles means that they go around something, like the Earth. Giving means that they are giving something, like info. Info is short for information.