KEY POINTS
  • The United States and Russia have long been partners through the International Space Station, but the invasion of Ukraine threatens to end that longstanding cooperation.
  • "The ISS program has led a charmed life" and "has overcome all sorts of political and technical issues," but "we now face our greatest challenge," Voyager Space president Jeff Manber told CNBC.
  • President Joe Biden said on Thursday the sanctions on Russia will "degrade" its aerospace industry, "including the space program."
ISS Expedition 64 crew member, Russian cosmonaut Sergey Ryzhikov takes part in a training session at the Yuri Gagarin Cosmonaut Training Center in Zvyozdny Gorodok [Star City], Moscow Region.

For more than two decades, the space agencies of the United States and Russia have been partners through the International Space Station — but the invasion of Ukraine threatens to end that longstanding cooperation.

"The ISS program has led a charmed life" and "has overcome all sorts of political and technical issues," but "we now face our greatest challenge," Voyager Space president Jeff Manber told CNBC.