The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

Before it was moulded into a neat set of planets, every scrap of matter in the solar system was part ... We can unpick the 4.5 billion year journey from the solar nebula, to the protoplanetary disc, ...

The planets had not condensed gently from the solar nebula; instead they had grown ... much closer together than the planets in our solar system. Some are Jupiter- or Neptune-size worlds that ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in circular orbits around the Sun on a flat disk. But in reality, our Solar ...

Watch this video to find out more about the Earth, planets in our Solar System and other planets far off in outer space. From up here on the International Space Station I get a great view of Earth.

Scientists now think that a mysterious object massive enough to have gravitational interactions with the Solar System’s disk and planets flew by billions of years ago and permanently altered their ...

Solar System: Explore your knowledge about ... been formed from a moving cloud of gases, which is called Nebula. The Sun and the planets were born out of this cloud. The force of gravity has ...