1989
It is top classified information that only the government and the NASA association can now about it
In 1989, the rings of Neptune were thought to be made up of primarily dust and debris, with some rocky material mixed in. The rings were not well understood until the Voyager 2 spacecraft provided more detailed observations later that year.
Voyager 2 spacecraft headed toward Neptune in the year 1989. But I have no idea if the voyager photograph Neptune's rings.
Galileo discovered the rings of Saturn in 1610.
Triton was discovered on October 10th, 1846.
Galileo discovered Saturn in 1610 through his telescope. He observed its unique shape and rings but was unable to identify them accurately at the time.
Neptune has 60,190 number of days in a year.
NASA was created in 1958.
165 days makes a year on Neptune.
Giovanni Domenico Cassini discovered the division between Saturn's rings in the year 1675. This prominent division, known as the Cassini Division, is a gap between the A and B rings of Saturn and is named in his honor.
nasa began in 1958
There are no satellites or robots on Neptune.