1989
It is top classified information that only the government and the NASA association can now about it
Galileo discovered Saturn's Rings in 1610
Voyager 2 spacecraft headed toward Neptune in the year 1989. But I have no idea if the voyager photograph Neptune's rings.
Triton was discovered on October 10th, 1846.
Galileo discovered the rings of Saturn in 1610.
Saturn has an extensive system of rings. Giovanni Domenico Cassini discovered the division between Saturn's rings in 1675. He also discovered four of Saturn's moons.
nasa began in 1958
NASA was created in 1958.
Neptune has 60,190 number of days in a year.
much of what is known about Neptune comes from the space probe Voyager II, which passed Neptune in 1989. Neptune was found to have two narrow rings and other fainter ones, as well as six moons. A year on Neptune is equal to almost 1656 Earth years. A Neptunian day is about 18 hours long.
165 days makes a year on Neptune.
NASA was established on July 29, 1958.