Kuiper Belt
What is the Kuiper Belt?
The Kuiper Belt is a ring of rocky, icy bodies that begins 30 AU from the Sun, but how was it discovered? Astronomer David Jewitt - the first to discover an object beyond Pluto - reveals all.
How astronomers weighed the Kuiper Belt
Using data from the Cassini mission, astronomers have come up with an ingenious method of calculating the mass of trans-Neptunian objects.
New Horizons | What next for the Kuiper Belt mission?
As the New Horizons spacecraft sails through the Kuiper Belt we investigate how the NASA mission is continuing to study objects it can spy from afar.
New Horizons flyby reveals critical clues about planetary formation
Data from New Horizons' encounter with Arrokoth in the Kuiper Belt is unlocking the secrets of the Solar System.
Interview | New Horizons' Kuiper Belt encounter
On 1 January 2019, the New Horizons spacecraft flew by the Kuiper Belt object 486958 Arrokoth. But what did it discover?
Missing link of planetary formation discovered
A planetary body has been found that bridges the gap between the dust of the primordial Solar System and the planets we see today.
What has New Horizons found at Ultima Thule?
The initial findings from the New Horizons spacecraft's flyby at Ultima Thule have been released by NASA scientists, although the majority of data is yet to come.
Interview: Ramy El-Maarry, New Horizons scientist
Ramy El-Maarry discusses the New Horizons mission and its Ultima Thule fly-by.
How did the Solar System form?
The Solar System formed about 4.5 billion years ago out of a dusty, gassy disc orbiting the Sun.
Mars-like object detected in outer Solar System
An object with the same mass of Mars could be orbiting the outer reaches of our Solar System, but it's not the fabled Planet 9, astronomers say.
New Horizons heads for Kuiper Belt object
New Horizons is due to fly by a Kuiper Belt object that is proving mysterious, according to ground-based observations.
Halley-like comet destroyed by white dwarf
A comet of similar composition to Halley’s Comet has been ripped apart in the atmosphere of a white dwarf star.
New dwarf planet discovered in Kuiper Belt
A dwarf planet has been discovered in the ring of icy worlds beyond Neptune, on a 700-year orbit.
Cheltenham Science Festival: The Kuiper Belt
Dave Jewitt and Jane Luu discuss this far-flung corner of our Solar System.