Orsolya Ferencz, Hungary's ministerial commissioner for space research, announced on Tuesday that Hungarian research astronaut Tibor Kapu will embark on a space mission to the International Space Station on May 29.

"The announcement of the Axiom 4 expedition, including Kapu on board, has been officially made," she said on Facebook.

She said the "historic moment" of Tuesday's announcement "concludes a close to two-year pre-selection and training process, followed by an eight-month mission-specific preparation process in the United States".

Ferencz said that "by fulfilling the most rigorous criteria set by NASA, SpaceX and Axiom Space, Kapu and his reservist Gyula Cserenyi have elevated themselves to among the world’s best."

"With his training complete, astronaut Kapu is ready for the mission. Hungary can once again prove its perseverance and commitment in this scientific programme," she said.

"The Hungarian flag will be ascending again into space after many decades. Follow this new historic Hungarian success along with us," said Ferencz.