Sailing onward, the probe carried out a Jan. 1, 2019 flyby of Arrokoth, a Kuiper Belt Object, or KBO, located in a region of space beyond Neptune called the Kuiper Belt. There are scads of other ...

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

Charon also has an abnormally circular orbit of Pluto, with its orbital eccentricity ... called a contact binary, like 486958 Arrokoth. This research and the results it provides are exciting ...

It suggests that KBOs like Arrokoth can maintain their volatile ... activate and display cometary behavior upon altering their orbit closer to the sun. This hypothesis could help explain phenomena ...