telstar是什么意思，用英语说它是用来干什么的

telstar天王星

在词典里搜Telstar

n.
[美]通信卫星(商标名)

Telstar was the first active communications satellite (launched in 1962), and the first satellite designed to transmit telephone and high-speed data communications. Its name is used to this day for a number of television broadcasting satellites.

It is possible the name was a short form of "tele-communication star".