It’s also the smallest planet that’s ever been directly imaged with a telescope, rather than being observed by eclipsing its parent star.
|Image Credit: NASA's Goddard Space Flight Center/S. Wiessinger|
Astronomers say there's a PINK planet on the edge of our Solar System.
The lump of ice and rock circles the sun at a greater distance than any known object, never getting closer than 12bn km (7bn miles).