NASA astronaut Jeanette Epps will join astronauts Sunita Williams and Josh Cassada as a crew member on the first operational flight of Boeing’s CST-100 Starliner spacecraft to the International Space Station (ISS), announced NASA. The six-month expedition, which is planned to launch in 2021, will make Epps the first Black woman to live and work in space for an extended period of time. Epps responded to her new assignment in a Twitter video, saying she’s “looking forward to the mission” alongside Williams and Cassada. NASA assigned Williams and Cassada to the Starliner-1 mission in August 2018. The spaceflight will be the first for Cassada and third for Williams, who spent long-duration stays aboard the space station on Expeditions 14/15 and 32/33.