'The Chinese Have Really Caught up': Why NASA Is in Race to Land Astronauts on the Moon

'The Chinese have really caught up': Why NASA is in race to land astronauts on the moon

Experts agree China is a valid threat to NASA's return to the moon plans. Here's why there is a rush to get SLS off the launch pad.

The Russian space agency Roscosmos and the China National Space Administration (CNSA) have signed a memorandum of cooperation...