@CNN: By being the first to land a spacecraft and rover on the far side of the moon, China signals to the US that it must now up its game, writes former astronaut @AstroDude https://t.co/cwUfqvAA1H

@CNN: By being the first to land a spacecraft and rover on the far side of the moon, China signals to the US that it must now up its game, writes former astronaut @AstroDude https://t.co/cwUfqvAA1H