Also found in: Dictionary, Thesaurus, Wikipedia.
Ultima Thule,in astronomy and space exploration, nickname for ArrokothArrokoth,
trans-Neptunian object in the Kuiper Belt (see comet). First observed by the Hubble Space Telescope in 2014 and later nicknamed Ultima Thule (until its official naming in late 2019), it became the most distant object ever visited by a spacecraft when NASA's
..... Click the link for more information. .
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
to Romans, extremity of the world, identified with Iceland. [Rom. Legend: LLEI, I: 318]
Allusions—Cultural, Literary, Biblical, and Historical: A Thematic Dictionary. Copyright 2008 The Gale Group, Inc. All rights reserved.
1. another name for Thule
2. any distant or unknown region
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005