evidence: NASA has chosen Piyumi Wijesekara, a postdoctoral research scientist in the Radiation Biophysics Laboratory at NASA Ames Research Center in California’s Silicon Valley. Accordingly, NASA announced that Jason Lee, Stephanie Navarro, Shareef Al Romaithi, and Piyumi Wijesekara will step into the agency’s Human Exploration Research Analog, or HERA, on 10 May. Wijesekara and her team will spend 45 days living and working like astronauts at NASA's Johnson Space Center in Houston.