evidence: - ^ "NASA selects Piyumi Wijesekara among four volunteers in simulated mission to Mars". www.msn.com. Retrieved 2024-04-23. - ^ "Sri Lanka's Piyumi Wijesekara among NASA's new crew for next simulated Mars journey". www.adaderana.lk. Retrieved 2024-04-23. - ^ "Sri Lanka's Piyumi Wijesekara among new NASA crew for next simulated Mars journey | Daily FT". www.ft.lk. Retrieved 2024-04-23.