In a brief news release Thursday, NASA announced that Serena Auñón-Chancellor, a fellow member of Epps’s astronaut class who was scheduled to launch later in the year, would be bumped up to take Epps’s place. Epps, who had already started training for her role on Expedition 56-57, will return to Johnson Space Center in Houston, where she will be a candidate for future crews.
NASA did not give an explanation for the crew change. But Epps’s brother
blamed racism at the space agency.
“My sister Dr. Jeannette Epps has been fighting against oppressive racism and misogynist in NASA and now they are
holding her back and allowing a Caucasian Astronaut to take her place!” Henry Epps wrote in a Facebook post Saturday.
(The post has since been removed.) He linked to a Move On.org petition asking NASA to reinstate Epps.
In an email, Epps said she could not comment on her brother’s post or the reason for the crew change and clarified that
neither she nor anyone in her family created the petition.
Epps said that she did not have a medical condition or family problem that would have prevented her from participating
in the mission and that her overseas training in Russia and Kazakhstan had been successful.
NASA likewise declined to comment about Henry Epps’s post but provided a statement saying, “Diversity and inclusion are
integral to mission success at NASA and we have a diverse astronaut corps reflective of that approach.”
Last-minute crew changes are not unusual at NASA. Apollo 13 pilot Ken Mattingly was famously pulled from
his mission days before launch after being exposed to German measles. It’s also common for NASA to give limited
explanations for these changes, which may involve private medical reasons or other sensitive information.
Epps, who has a PhD in aerospace engineering, was selected as a NASA astronaut in 2009 after seven years of working for
In an interview with New York Magazine last year, after her historic assignment to the ISS crew was announced, Epps said
she felt “a huge amount of responsibility.”
“As a steward, I want to do well with this honor,” Epps said. “I want to make sure that young people know that this didn’t
There was a lot of work involved, and a lot of commitment and consistency. It is a daunting task to take on.”
Alongside Epps, Aunon-Chancellor was one of 14 astronaut candidates selected out of some 3,500 applicants for NASA’s
20th astronaut class in 2009. She has a medical degree and previously served as a surgeon and managed medical operations
for a range of NASA missions.
Auñón-Chancellor’s selection was also history-making: She will be the first Hispanic woman to live on the space station.