A SpaceX spacecraft carrying a US astronaut and a Russian cosmonaut, and two empty seats, arrived at the International Space Station (ISS) on Sunday. NASA astronaut Nick Hague and Russian cosmonaut Aleksandr Gorbunov took off on Saturday from Cape Canaveral, Florida. The Dragon spacecraft, operated by SpaceX, the private company founded by billionaire Elon Musk, had two empty seats. Originally, astronauts Zena Cardman and Stephanie Wilson were set to be part of NASA’s SpaceX Crew-9 mission. However, they gave up their spots to accommodate Suni Williams and Barry Wilmore, astronauts who have be…