[X] My Assistant

[Guest_PhilCo126_*]

Certainly worth a look:

http://www.newscientist.com/blog/space/200...ever-flown.html

[jasedm]

IMO Voyager 2 alone is at number one, and the Voyagers combined trump everything else by a huge margin.
Let me list just a few reasons.....
Four planet reconnaissance, discovery of more moons than any other spacecraft or individual in history.
Discovery of numerous hitherto unknown planetary rings.
Sub-10km resolution views of 20-25 natural satellites never before seen, some of these down to 600m resolution
Detailed views of 4 planetary atmospheres, and four planetary ring systems.
Confirmation of gas giant lightning and detailed probing of planetary magnetospheres, numerous valuable occultations of atmospheres and rings, and the discovery of the solar system's only active volcanoes and geysers outside of Earth's.
Introduction to the scientific community, of shepherding satellites, ring spokes, Io's sodium torus, and planetary ring arcs (suspected pre-voyager I know). providing tantalising hints of sub-surface ocans on Europa and methane near its triple point on Titan.
Not only that, but both are still operative and returning data on the heliosheath and heliopause, having been in continuous operation for over 30 years - I don't know of many other machines that function without pause for over three decades.
This is a no-brainer surely....