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

The Hubble Space Telescope has been imaging the outer planets of our solar system for a decade, learning about their strange ...

A NASA Hubble Space Telescope observation program called OPAL (Outer Planet Atmospheres Legacy) obtains long-term baseline observations of Jupiter, Saturn, Uranus, and Neptune in order to ...

This is a montage of Hubble Space Telescope views of our solar system's four giant outer planets: Jupiter, Saturn, Uranus, and Neptune, each shown in enhanced color. The images were taken over ...

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 ...

A storm like a giant dark splotch the size of Earth's Atlantic Ocean was spotted in the atmosphere of Neptune in 2018, which Hubble followed until the storm's demise toward the planet's equator.

Both of the ice giant planets, Uranus and Neptune, lacked what's known as a "dipole magnetic field." This was in stark contrast to our own rocky world, as well as the two gas giants Jupitar and ...

Discover what the Hubble Outer Planet Atmospheres Legacy program has learned about the outer planets, including Jupiter, Saturn, Uranus, and Neptune.