Pioneer 11, launched in 1973, was a deep space probe very similar to its predecessor, Pioneer 10. It was not designed to "discover" anything about the sun, but it was equipped to gather information on the heliosphere, which consists of solar winds, and it did do that. I find it more interesting that it was the first probe that could actually image extraterrestrial objects (by which I mean objects not on Earth, not alien ships) and relay those images back to Earth, pixel by pixel.
One thing Pioneer 11 discovered about Saturn is that it is composed mainly of liquid hydrogen. It also discovered a previously unknown ring, and two small moons.
Pioneer 11 was launched 5th April 1973 at 02:11:00 UTC
There are two Pioneer Probes: Pioneer 10 and Pioneer 11. Both probes were launched in the early 1970s and provided valuable information about the outer solar system before losing contact with Earth.
Discover's day and pioneer's day
HMAS Pioneer ended on 1912-11-29.
Sun spots
Sun Bonnets
Discover's day and pioneer's day
Discover's day and pioneer's day
The Pioneer probes, specifically Pioneer 10 and Pioneer 11, were launched to explore Jupiter and Saturn. Pioneer 10 became the first spacecraft to travel through the asteroid belt and make a successful encounter with Jupiter, while Pioneer 11 flew by Jupiter and Saturn.
They discover and try new things in the medical world
Peter Stephens - pioneer - died on 1757-11-01.