Skip to main navigation Skip to search Skip to main content

The geology and geophysics of Kuiper Belt object (486958) Arrokoth

  • J. R. Spencer
  • , S. A. Stern
  • , J. M. Moore
  • , H. A. Weaver
  • , K. N. Singer
  • , C. B. Olkin
  • , A. J. Verbiscer
  • , W. B. McKinnon
  • , J. Wm Parker
  • , R. A. Beyer
  • , J. T. Keane
  • , T. R. Lauer
  • , S. B. Porter
  • , O. L. White
  • , B. J. Buratti
  • , M. R. El-Maarry
  • , C. M. Lisse
  • , A. H. Parker
  • , H. B. Throop
  • , S. J. Robbins
  • O. M. Umurhan, R. P. Binzel, D. T. Britt, M. W. Buie, A. F. Cheng, D. P. Cruikshank, H. A. Elliott, G. R. Gladstone, W. M. Grundy, M. E. Hill, M. Horanyi, D. E. Jennings, J. J. Kavelaars, I. R. Linscott, D. J. McComas, R. L. McNutt, S. Protopapa, D. C. Reuter, P. M. Schenk, M. R. Showalter, L. A. Young, A. M. Zangari, A. Y. Abedin, C. B. Beddingfield, S. D. Benecchi, E. Bernardoni, C. J. Bierson, D. Borncamp, V. J. Bray, A. L. Chaikin, R. D. Dhingra, C. Fuentes, T. Fuse, P. L. Gay, S. D.J. Gwyn, D. P. Hamilton, J. D. Hofgartner, M. J. Holman, A. D. Howard, C. J.A. Howett, H. Karoji, D. E. Kaufmann, M. Kinczyk, B. H. May, M. Mountain, M. Pätzold, J. M. Petit, M. R. Piquette, I. N. Reid, H. J. Reitsema, K. D. Runyon, S. S. Sheppard, J. A. Stansberry, T. Stryk, P. Tanga, D. J. Tholen, D. E. Trilling, L. H. Wasserman
  • Southwest Research Institute
  • NASA Ames Research Center
  • Johns Hopkins University Applied Physics Laboratory
  • University of Virginia
  • Washington University in St. Louis, McDonnell Center for the Space Sciences
  • SETI Institute
  • Division of Geological and Planetary Sciences
  • National Science Foundation
  • JPL
  • Massachusetts Institute of Technology
  • University of Central Florida
  • Southwest Research Institute
  • Lowell Observatory
  • Northern Arizona University
  • University of Colorado Boulder
  • Planetary Environments Laboratory
  • NRC
  • Independent Consultant
  • Princeton University
  • Lunar and Planetary Institute
  • Planetary Science Institute
  • University of California, Santa Cruz
  • Decipher Technology Studios
  • University of Arizona
  • Independent Science Writer
  • University of Idaho
  • University of Chile
  • National Institute of Information and Communications Technology
  • University of Maryland, College Park
  • Harvard-Smithsonian Center for Astrophysics
  • National Institutes of Natural Sciences
  • North Carolina State University
  • Independent Collaborator
  • Association of Universities for Research in Astronomy
  • University of Cologne
  • Universite Bourgogne Franche Comte
  • Space Telescope Science Institute
  • Independent Consultant
  • Carnegie Institution for Science
  • Roane State Community College
  • CNRS
  • University of Hawaii

Research output: Contribution to journalArticlepeer-review

101 Scopus citations

Abstract

The Cold Classical Kuiper Belt, a class of small bodies in undisturbed orbits beyond Neptune, is composed of primitive objects preserving information about Solar System formation. In January 2019, the New Horizons spacecraft flew past one of these objects, the 36-kilometer-long contact binary (486958) Arrokoth (provisional designation 2014 MU69). Images from the flyby show that Arrokoth has no detectable rings, and no satellites (larger than 180 meters in diameter) within a radius of 8000 kilometers. Arrokoth has a lightly cratered, smooth surface with complex geological features, unlike those on previously visited Solar System bodies. The density of impact craters indicates the surface dates from the formation of the Solar System. The two lobes of the contact binary have closely aligned poles and equators, constraining their accretion mechanism.

Original languageBritish English
Article numbereaay3999
JournalScience
Volume367
Issue number6481
DOIs
StatePublished - 28 Feb 2020

Fingerprint

Dive into the research topics of 'The geology and geophysics of Kuiper Belt object (486958) Arrokoth'. Together they form a unique fingerprint.

Cite this