The amateur astronomer who discovered Pluto and visited the dwarf planet after his death
What is it about Pluto that made astronomers – such as the likes of Dr Mike Brown, Professor of Planetary Astronomy at the California Institute of Technology (Caltech) – insist on its declassification?
The event of 11 August 2018, was viewed by dedicated eclipse observers and others from the northern part of the Earth
The team behind the Pluto mission is looking for your ideas on what to informally name its next flyby destination, a billion miles past the dwarf planet
A new planet needs a name – but what we would we call it if it was found in our Solar System?