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

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

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 ...

Encountering Neptune in 1989, NASA's Voyager mission completed humankind's first close-up exploration of the four giant outer planets of our solar system. Collectively, since their launch in 1977 ...

Astronomers have discovered an unusual exoplanet with a long "tail" of gas trailing behind it. As NASA details in a recent ...

They never accreted into planets, and serve as pristine time ... offer for the first time a clearer picture of how the outer solar system formed and evolved based on analyses of trans-Neptunian ...