In the early centuries of astronomy, however, our visions of the cosmos often took the shape of diagrams—representing what we believed about our solar system. What’s remarkable about Claudius ...

This diagram shows the orbital distribution of extrasolar ... March 23 in Proceedings of the National Academy of Sciences. The findings help explain why our solar system is so different from the ...

But it is the diagram that he draws at the beginning of the book that captures in a simple image his revolutionary new idea: it is the Sun that is at the centre of the Solar System, not the Earth.

Astronomers have struggled for decades to explain the solar system’s current structure. In particular, Uranus and Neptune couldn’t have formed where they are today – the disc of gas that ...

The mysterious Planet Nine could be responsible for the slight tilt of our solar system relative to the sun ... Until now, astronomers had been unable to explain why all the planets are on ...

The find, announced Wednesday, can help explain how solar systems across the Milky Way galaxy came to be. This one is 100 light-years away in the constellation Coma Berenices. A light-year is 5.8 ...