OSIRIS-REx sample return FDC, USA

First-Day covers I made for the US OSIRIS-REx stamp that commemorated the successful return of an asteroid sample from space. NASA's OSIRIS-REx spacecraft was launched in September 2016. It took two years to reach the half km wide Asteroid 101955 Bennu. Then spent two years orbiting and studying the asteroid. After a quick touchdown to collect a sample, it left Bennu for a 7 month trip back to Earth.

As OSIRIS-Rex flew by the Earth it released it's 80x50 cm return capsule which landed in the Utah desert at 8:52AM MDT on 24 September 2023 carrying a 70g sample of asteroid rock and dust.