Your letters and comments on the September 17, 2016, issue of Science News
Astronomers confirmed the existence of an exoplanet, Proxima b, only 4.2 light-years from Earth, Christopher Crockett reported in “Planet orbits sun’s nearest neighbor” (SN: 9/17/16, p. 6).
Some readers thought there was too much excitement over the new potentially habitable planet.
Christina Gullion believes keeping Earth habitable in the face of a changing climate is more important than searching for other planets. “Off-planet exploration seems to me to be a counterproductive diversion of funds and scientific knowledge,” she wrote. “I think it is self-indulgently romantic to invest scarce resources in