You forget
The flotilla of unmanned missions to Venus by the US and USSR in late 1978.
Don't worry, China and India will fill in the manned spaceflight gap.
Space/Science » in reply to A gap in sapceflights...should it be a concern?
The flotilla of unmanned missions to Venus by the US and USSR in late 1978.
Don't worry, China and India will fill in the manned spaceflight gap.