Leonid Kadenyuk, born January 28, 1951, is the first astronaut from Ukraine. He was selected for the Soviet space program to be a test pilot for the Soviet Buran program, but that didn't last.
He flew on Columbia (STS-87) as a payload specialist in November-December 1997. He did not return to space.
Asteroid 399673 Kadenyuk was named in his honor in 2004
He passed away in January 2018. .
