evidence: NASA Selects Sri Lanka's Piyumi For Simulated Mission by Zulfick Farzan 18-04-2024 | 4:12 PM [...] And among them is Sri Lanka's Piyumi Wijesekara, who is joined by Jason Lee, Stephanie Navarro, and Shareef Al Romaithi. [...] Piyumi Wijesekara is a postdoctoral research scientist in the Radiation Biophysics Laboratory at NASA Ames Research Center in California’s Silicon Valley.