Communication with Apollo 11
© NASA.
The finite speed of light took its toll on the Apollo astronauts, who had to wait 2.5 seconds to hear transmissions from flight controllers Charles Duke and Jim Lovell, pictured here. (Unit: 7)
© NASA.
The finite speed of light took its toll on the Apollo astronauts, who had to wait 2.5 seconds to hear transmissions from flight controllers Charles Duke and Jim Lovell, pictured here. (Unit: 7)