Chesley Bonestell, “The Exploration of Mars” (1953), oil on board, 143/8 x 28 inches, gift of William Estler, Smithsonian National Air and Space Museum. Reproduced courtesy of Bonestell LLC.

Gene Editing Entering New Stage

September 21, 2017

9/20/17 – Two new scientific achievements illustrate the wide-ranging potential of the gene-editing tool CRISPR/Cas9: the first-ever manipulation of a key gene in human embryos that yielded fundamental insight into how single cells transform into complex babies, and the laboratory creation of colorful butterfly wings that may offer clues in evolutionary biology. The advances also suggest the array of social concerns accompanying the new technology, as covered recently by Issues in a series of articles.