The Juno spacecraft is already forcing us to rewrite the textbooks.

NASA
On April 16, 1972, Apollo 16 departed for the moon. It was the second-to-last crewed mission to the moon. It was also the second time astronauts drove the Lunar Roving Module, also known as the coolest dune buggy in the universe.
New details on the breaking-edge mission to the Jovian moon.
Helping you clean up small messes since 1981, among other things.
The next day, Alan Shepard swung his smuggled six-iron.
When the Space Shuttle 'Challenger' disintegrated 73 seconds after liftoff on January 28, 1986, there were seven astronauts on board whose lives were tragically cut short.
First we find it. Then we try to move it. And if that doesn't work, we blow it up.
The unusual decision to photograph nothing in particular revealed the early universe in all its glory.
To prepare for life in zero gravity, astronauts make sure their arms and hands are in tip-top shape.
More than 850 articles have been uploaded so far, and more are on the way.
Not good things, to our dismay.
The Viking I lander touched down on Mars on July 20, 1976. It was just the first of many NASA missions to the red planet.
Cross their heart: The bra and girdle company convinced NASA they could protect astronauts from moon dangers.
Four out of every five astronauts on long-term missions return to Earth with a condition called visual impairment intracranial pressure syndrome.
After a five-year journey, Juno will be ensnared by Jupiter's gravity and orbit the planet 33 times, then plunge beneath the clouds and disintegrate.
The recovery was unbelievably lucky.
...it's also been a valuable source for scientific research and discovery for four decades.
These "human computers" were an integral part of the early space program, but were largely unheralded.
With even a modest telescope, you might be able to make out Jupiter's bands of brown, tan, and white.