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Alternative hypotheses for making the Moon

Stevenson, David (2015) Alternative hypotheses for making the Moon. Physics Today, 68 (4). p. 10. ISSN 0031-9228. https://resolver.caltech.edu/CaltechAUTHORS:20150522-074620493

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Abstract

Stevenson replies: I thank these letter writers for their alternative suggestions. Actually, neither is really new, and my failure to mention them—or others—is not because I was unaware of their existence, but rather because of the major challenges that these alternatives must overcome. In the Lagrange point scenario, which is widely known in the community, the challenge is to devise a story in which such bodies naturally arise in the context of a model that explains the planetary system, not just Earth–Moon. It is not sufficient to postulate them. A new paper1 might suggest that the similarity of the impacting body and target is not so unreasonable. In the more astonishing fission story, the challenge lies in the basic physics of the proposed process, which is questionable.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/PT.3.2733 DOIArticle
http://scitation.aip.org/content/aip/magazine/physicstoday/article/68/4/10.1063/PT.3.2733PublisherArticle
ORCID:
AuthorORCID
Stevenson, David0000-0001-9432-7159
Additional Information:© 2015 American Institute of Physics.
Issue or Number:4
Record Number:CaltechAUTHORS:20150522-074620493
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150522-074620493
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57760
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:22 May 2015 20:45
Last Modified:03 Oct 2019 08:28

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