Barentine, John C.
Article History
Received: 16 February 2022
Accepted: 6 July 2022
First Online: 29 August 2022
Competing interests
: The author declares the following competing interests. Financial competing interests: the author is self-employed as a consultant in the field that is the subject of this Review. Non-financial competing interests: the author is an unpaid member of committees of the American Astronomical Society and International Astronomical Union that advocate or lobby for interests that are the subject of this Review.