A recent study introduces a potential new candidate, dubbed Planet Y, inferred from the tilted orbits of distant objects in the Kuiper Belt.

Astronomers using the Hubble Space Telescope have observed a white dwarf – a highly compact stellar ember – that appears to have gobbled up an icy world akin to the dwarf planet Pluto, a finding with ...

Here on Earth, we are used to having just one moon orbiting around us, but it is well known that other planets have a lot more. Up until recently, the planet Uranus was thought to have 29 moons, but ...