NASA has had 92 missions.
zero. voyager2 wasn't intentionally going to Uranus so its not a mission
I think 11 failed, as I know there were 17 in total, and 6 were successful.
The shuttle missions are numbered in order of launch date. The next launch will be STS-125, which will service Hubble. Sometimes they launch out of sequence because of delays. STS-119 will launch in...
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