Text and Data Mining valid from 2019-04-29
Received: 23 August 2017
Accepted: 13 March 2019
First Online: 29 April 2019
Change Date: 23 May 2019
Change Type: Correction
Change Details: In the version of this Article originally published, the author Rosaly Lopes was mistakenly affiliated with Northern Arizona University. Her affiliation has now been corrected to: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.
: The authors declare no competing interests.