there were two main spacecrafts the voyager 1 and the voyager 2 that flew to Jupiter and in to deep space. It was in 1979.
There have been 6 probes sent but no significnant information has been obtained.
The Cassini-Huygens probe. cassini mapped and analyzed the atmosphere of Jupiter while the huygens probe was dropped deep into the atmosphere to record and take pictures of the atmospheric conditons....
yes
It was supposed to get to Jupiter on 2016 May 11