High school reunions: the time when people show off their slim figures, their attractive spouses and their impressive business cards. But for the former students of Henning High School in Henning, Minn., alum Karen LuJean Nyberg had them all trumped. She showed them how to do a summersault in zero gravity from the International Space Station.

A mechanical engineer and NASA astronaut, Nyberg, 42, attended her 25th high school reunion by video link as she serves as part of Expedition 36 aboard the International Space Station.

Nyberg gave her former classmates and their families a tour of the space station and even a glimpse of the sun rising over the Earth in space, reports ABC News.

“This is my favorite part of the job,” Nyberg said as she flipped upside down and continued the chat.

But classmates were filled with happiness, not envy — saying they were glad to see her again, even if she was 200 miles above the Earth.

“They kind of become your extended brothers and sisters, and in that respect Karen is like our family,” Andrea Rogers, a classmate, told WDAY-TV in Fargo, N.D.

“For her to be able to join us sort of completes our family reunion as much as it is a class reunion,” she added.

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