Sian Proctor
African American explorer, scientist, STEM communicator · United States · On the map · Scientists · Born 1970 · age 56
Sian Hayley "Leo" Proctor is an American commercial astronaut, geology professor, artist, author, and science communicator. She became the first female commercial spaceship pilot and the first artist selected to go to be an astronaut on the all-civilian Inspiration4 orbital spaceflight, 15 September 2021.
Sian Proctor is read about 48 times a day, in 13 languages.
A typical day, 30 days to 15 June 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
Something wrong?Media & music
In their own words 5
, Think about humanity’s connection to moonlight,” Proctor said. “We have love songs, poetry, werewolves, and more.
When I’m talking about space to inspire, it’s about this space - the space that made you, you,” she said.
I’m the fourth Black female from the United States to fly to space, only four of us. And out of the four that have gone, only one person has gone multiple times.
About this person
As pilot of the Inspiration4's SpaceX Crew Dragon space capsule, Proctor became the first African-American woman to pilot a spacecraft. She was also the education outreach officer for the first Hawaii Space Exploration Analog and Simulation (HI-SEAS) Mission. In 2024, Proctor was selected to be a U.S. Science Envoy for the United States Department of State.
