Abstract
In the Reflections article, “From Planetary Quarantine to Planetary Protection: A NASA and International Story” by John D. Rummel, Volume 19, no. 4, 2019, pp 624–627, the “S” in the acronym for “MSC” was inaccurately defined as “Spaceflight”.
At the bottom of 624 and on Abbreviations Used on page 627, MSC should now read: “Manned Spacecraft Center”.
The online version has been revised to reflect the correction above.
The author regrets the error.