Observations made of Jupiter’s moon Io during the Juno mission’s flybys helped astronomers confirm how and why Io became the ...

The planet named after the king of the gods in Roman mythology is visible all night long right now, rising in the east at ...

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

The Sun is an incandescent but benevolent dictator. For billions of years, it's kept our Solar System well organized and ...

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

Researchers from the Juno mission have finally solved a mystery that has puzzled scientists for over four decades.

Weather permitting, Jupiter will not only be brighter than most other stars and planets in the evening sky, but will also be ...

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

Test your knowledge on our solar system, from the biggest and smallest planets to the behemoth mountain on Mars.

Io, roughly the size of Earth's Moon, is home to approximately 400 volcanoes that continuously erupt, contributing to its ...

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

The communications lag between Earth and Jupiter means missions to Europa will need to be smart to deal with problems on ...