The amateur astronomer who discovered Pluto and visited the dwarf planet after his death
Astronomy
Astronomy
Solar System
Ancient stellar flyby reshaped the outer Solar System
Researchers have theorised that a primordial stellar intruder not only stole material from our Solar System, but mixed up the orbits of Kuiper Belt objects
Solar System
Exiled asteroid found in the Kuiper Belt
Astronomers confirm the existence of the first carbon-rich lump of space rock in the outer reaches of the Solar System
Solar System
New Horizons Update: Spacecraft’s new target could be a ‘double Kuiper Belt Object’
The next flyby target for the NASA mission could actually be two targets
Solar System
Hubble spies moon around third largest dwarf planet
The pair reside in the frigid outskirts of our Solar System called the Kuiper Belt
News
Giant Jupiter-like world reveals clues on how planets evolve
Astrophysicists have got a rare peek at a baby planetary system 300 light years away
News
Hubble sees Comet Halley’s big brother being shredded by white dwarf
For the first time, a massive, comet-like object that has been seen being ripped apart and scattered in the atmosphere of a ‘dead star’
News
Astronomers investigate possibility of exotic life in Pluto’s oceans
The dwarf planet raises the question of whether some truly novel life forms could exist on such a frigid world
News
Astronomers provide more evidence for a ninth planet in the Solar System
The search for an unseen world far, far beyond Neptune’s orbit has become clearer
News
High-speed instrument to hunt for Kuiper Belt objects
Astronomers are busy tinkering with a high-tech instrument that could discover a variety of objects both far from Earth and closer to home
Space Exploration
Five things you didn’t know about NASA’s New Horizons spacecraft
Check out these five amazing facts about the Pluto-bound mission
Solar System
How big is a dwarf planet?
Measuring the size of these pint-sized worlds is more complicated than it seems…
Solar System
Does Planet X exist?
Could another planet exist in the Kuiper Belt? The jury is still out…
Solar System
What is the Oort cloud?
What is the is region of space at the edge of the Solar System?