CHICAGO, IL - MAY 31: University of Chicago astrophysicist Dr. Eugene Parker listens as NASA officials announced plans to deploy a solar probe into the sun's atmosphere for the first time on May 31, 2017 in Chicago, Illinois. Scheduled to be launch in the summer of 2018, the probe will be named the Parker Solar Probe in Dr. Parker's honor. (Photo by Scott Olson/Getty Images)
