Ultima Thule

Ultima Thule

Carey Lisse, an instrument scientist on the New Horizons science team reacts after the team received confirmation from the spacecraft that it has completed the flyby of Pluto, Tuesday, July 14, 2015 at the Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Maryland. Photo Credit: (NASA/Joel Kowsky)

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?

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