Astronaut Jeanette Epps, who was a Corcoran High School and LeMoyne College graduate, was supposed to rocket away in early June, and would have been the first African-American to live on the International Space Station.
The first black female astronaut ever assigned to an International Space Station was yanked from the mission just months before it was set to launch, according to a report Friday.
NASA didn't cite a reason for replacing her but said she would be considered for other missions in the future, the station reported.
She's been replaced by her backup, Serena Aunon-Chancellor, a doctor.
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She would have flown on board a Russian Soyuz flight in June yet is being supplanted by another space traveler.
It would have been the NY native's first trip to space, and the first long-duration stay at the orbiting outpost by an African-American. Meanwhile, the would-be space voyager will assume duties at the Astronaut Office at NASA's Johnson Space Center in Houston, Texas.
Nasa offered no explanation behind the choice to expel her from the Expedition 56/57 mission.
Epps was born in Syracuse and completed her doctorate in aerospace engineering in 2000.
She filled in as a specialized knowledge officer for a long time before being chosen as an individual from Nasa's 2009 space explorer class. Auñón-Chancellor is a medical doctor from Fort Collins, Colorado, who has spent over nine months in Russian Federation as support staff for medical operations for space station crew members.