Over the last ten years, OPAL has observed Uranus' northern hemisphere, which has faced the inner solar system for the ...

NASA and ESA’s Hubble Space Telescope has been observing the outer planets through a program called OPAL (Outer Planet ...

NASA explores the unknown in air and space, innovates for the benefit of humanity, and inspires the world through discovery.

Hubble’s OPAL program tracks Jupiter, Saturn, Uranus, and Neptune Seasonal and atmospheric changes revealed over a decade Key insights into gas giants’ weather systems shared by NASA ...

Hubble has also been able to observe Saturn's elusive dark ring spokes. First discovered by NASA's Voyager mission in the 1980s, these dark rings only last for two or three rotations around Saturn.

Hubble has also been able to observe Saturn's elusive dark ring spokes. First discovered by NASA's Voyager mission in the 1980s, these dark rings only last for two or three rotations around Saturn.

NASA explores the unknown in air and space, innovates for the benefit of humanity, and inspires the world through discovery.

The dissapearence will be purely optical. In reality, Saturn's rings won't go anywhere. The complete disappearance of Saturn's rings for observers on Earth will occur twice in 2025—once in ...