Discover which planet is the fastest in the solar system. Learn why Mercury moves at 47 km/s, has the shortest year, and ...

The discovery of a tiny planet dubbed ‘The Goblin’ on the fringes of the solar system could indicate the presence of the fabled Planet Nine. With Halloween less than a month away, the world of ...

The Earth is our planet. It is one of eight planets that move around the sun, each in an oval shaped, elliptical orbit close elliptical orbitAn orbit that is the shape of an ellipse. An ellipse is ...

Saturn orbits the Sun at roughly 9.69 km/s, maintaining its grand system of rings as it cruises through space. Uranus moves at about 6.81 km/s, spinning on its unique sideways axis as it orbits the ...

The production of the ARAQYS-D3 spacecraft and its solar array will be a bi-continental effort, taking place at Dcubed’s ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. A composite image comparing the relative sizes of our solar system's known dwarf planets, ...

A team of researchers has found a simpler and less mysterious answer as to why bodies in the distant solar system have strange orbits. One of the biggest mysteries of out stellar neighbourhood has ...

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

Learn how a possible ninth planet, the theoretical Planet X, could have acquired its wide orbit in the outer Solar System — a process that’s also applicable for other planets. Sam Walters is the ...