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 ...

Encountering Neptune in 1989, NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer ...

Ask almost anyone which planet has rings around it, and you’ll get the answer “Saturn”, especially if they’ve ever viewed it through a telescope. But not many people know that the other gas giants in ...

The planet Jupiter's more massive than all the other planets in the Solar System put ... Several of these volcanoes were most recently seen in eruption by the NASA New Horizons spacecraft on its way ...

Saturn is the sixth planet from the Sun. It is best known for its iconic rings. This massive gas giant has a fascinating system of rings and many unique moons. Tap to read in detail.

In 1655, Huygens observed Saturn using a better telescope and suggested there was a big ring around the planet. Thanks to ... Saturn lies in the south and Jupiter is rising in the northeast.