Hi,
In my opinion one of the two most successfully projects human ever did ... Voyager 1&2 and Hubble telescope. Here is the first one in short description:
10/10/2019:
42years 1month 4days in space
38 026 mph, 62 140km/h (17km/sec)
Take 34 000 photos
Flyby Jupiter, Saturn, Uranus, Neptune and their moons
Distance from sun 147 AU (1AU= distance earth -> sun)
Contact with probe should be lost in 2025.