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  Close-up view of an active asteroid

Agarwal, J. (2019). Close-up view of an active asteroid. Science, 366(6470), 1192-1193. doi:10.1126/science.aaz7129.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-68A7-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-68A8-8
Genre: Journal Article

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 Creators:
Agarwal, Jessica1, Author              
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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 Abstract: Most asteroids are irregularly shaped celestial bodies tens of kilometers in size or smaller that orbit the Sun inside the orbit of Jupiter. They are mostly rocky and have a wide range of compositions. This distinguishes them from comets, which originate further out in the solar system and contain a large fraction of ice that turns into gas when heated by the Sun and leads to the formation of the characteristic dust tail. On page 1217 of this issue, Lauretta et al. (1) found centimeter-sized debris ejected from the surface of the likely ice-free asteroid 101955 Bennu in images taken by NASA's OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer) spacecraft. The cause of this particle ejection remains somewhat puzzling, but the observations show that asteroids are far from being inert bodies (see the figure).

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Language(s): eng - English
 Dates: 2019
 Publication Status: Published in print
 Pages: -
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 Rev. Method: Peer
 Identifiers: DOI: 10.1126/science.aaz7129
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Title: Science
  Other : Science
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Association for the Advancement of Science
Pages: - Volume / Issue: 366 (6470) Sequence Number: - Start / End Page: 1192 - 1193 Identifier: ISSN: 0036-8075
CoNE: https://pure.mpg.de/cone/journals/resource/991042748276600_1