Save guides, add subjects and pick up where you left off with your BBC account. Gravity provides the force needed to maintain the stable orbit of planets around a star and also of moons and ...

Save guides, add subjects and pick up where you left off with your BBC account. The Sun and its planets – Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune The different planets ...

A groundbreaking discovery has been made by astronomers, who have uncovered a massive molecular cloud located just 300 ...

The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago. In 1983 ...

Our solar system may have a ninth planet after all ... Two deep infrared surveys taken 23 years apart measured the object's orbital motion. In 1983, the Infrared Astronomy Satellite surveyed ...

Astronomers have long speculated about an unseen planet lurking in the solar system's outer edge. This hypothetical world, dubbed Planet Nine, could explain the unusual clustering ...

Scientists are refining galactic motion models to predict whether the solar system might enter another dense region in the ...