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

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

For two decades now, the iconic twin Voyager spacecraft have been quietly overturning everything we thought we knew about the ...

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

We take a look at the current best predictions for what the solar system will look like throughout the rest of the Sun's life ...

“We wanted to determine how often our Sun produces superflares; however, the duration of direct solar observations is ...

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

Spinning in only about 35,700 seconds, its day is the shortest in our solar system, and it only has a 3-degree tilt, so it ...

Earth's name, unlike other planets named after Greco-Roman deities, originates from Old English "eorþe," meaning soil or ...

Carrying out simulations to try and discover what best explains the orbits of these objects, the team found that a model that ...