Facing a $1 billion budget shortfall, NASA is dropping the number of astronauts on the International Space Station.

The International Space Station is facing a $1 billion budget shortfall — separate from President Trump's plans to cut funding — that will require dropping the number of NASA astronauts there.

The release of NASA's latest budget reveals the Orion spacecraft and Lunar Gateway space station are getting the chop. The US$18.8-billion total figure decreases spending by $6 billion, or 24%, as the space agency increases funding for crewed Moon and Mars missions.