NASA is preparing to map the boundary where the solar wind meets interstellar space in its Interstellar Mapping and Acceleration Probe, set for launch sometime after September of this year. IMAP ...

There may be another world lurking between the orbital lines of our solar system. Astronomers in Japan have published their theory of an “Earth-like planet,” dubbed Planet Nine, that’s ...

The distance of the Oort Cloud to the interior of the Solar System. The scale bar is in astronomical units, with each set distance beyond 1 AU representing 10 times the previous distance.

Astronomers have discovered a rare in-sync solar system with six planets moving like a grand cosmic orchestra, untouched by outside forces since their birth billions of years ago. The find ...

A giant might lurk in the spherical region of ice and rock at the farthest reaches of our solar system. The odds aren't great, though.

The location of the solar system's outer boundary is a point of contention among astronomers. There are three possible candidates, which "all have merit." But which one is best?

Learn about the Solar System with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.