If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

Discover the order of planets in the solar system. From Mercury to Neptune, explore our solar system and learn more about our cosmic home. The solar system is our cosmic neighborhood, made up of ...

Ashworth became an amused observer of Mrs Thatcher, recalling that, if the PM became over-excited, one of her clip-on earrings would pop off ...