Answer :
If you're talking about the ones in space then I would say communication.
If you send a text or make a call or send an email it goes to the satellites first and them goes to whomever you sent it to:)
I hope I helped:)
If you send a text or make a call or send an email it goes to the satellites first and them goes to whomever you sent it to:)
I hope I helped:)
enternet connection and so that scientist can look out for metors and other danger earth might face.