There are hundreds of famous artifical satellites, and hundreds of thousands less known(including every bit of space junk not micrometeoroids), so I’ll list the ones that come to my mind. Sputnik I was, as you may have heard, the first artificial satellite launched into space. read more
First, two caveats: most of these satellites are representative of an entire class of satellites. There may be others that serve similar functions, but the satellites listed are exemplars. read more