On July 2, 2014, the prestigious science journal Nature retracted two heralded papers in the field of stem cell research, papers it had published only a few months earlier. The articles described a revolutionary process called STAP, where biologists subjected mature adult cells to physical stresses and transformed them into stem cells. Yet, in the editorial announcing the papers' retraction, Nature's editors reported that the "data that were an essential part of the authors' claims had been misrepresented" and that the authors' work was marred by "sloppiness" and "selection bias" ("Editorial: STAP retracted," Nature, vol. 511, no. 7507, July 2, 2014). All told, as the journalist Dana Goodyear has written, "a far-reaching and sensational conjecture" was "defeated by flaws that were at best irreparable and at worst unconscionable" ("The Stress Test," The New Yorker, February 29, 2016, pp. 46-57).