Kbo

Researchers find evidence of a Mars sized planetary mass object hiding in the outer solar system

The research presents compelling evidence of a yet-to-be- discovered planetary body with a mass somewhere between that of Mars and Earth.

Nasa's New Horizons mission is half way to its next flyby target in the outer solar system

Continuing on its path through the outer regions of the solar system, Nasa's New Horizons spacecraft has now traveled half the distance from Pluto.