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Well over a thousand artificial satellites are now in orbit round the earth, and some can be seen as bright lights crossing the stars. Patrick Moore talks to Desmond King-Hele, F.R.S. about the way amateur observers can sight and track satellites, and about the value of these observations to space research.
Episode 2
Well over a thousand artificial satellites are now in orbit round the earth, and some can be seen as bright lights crossing the stars. Patrick Moore talks to Desmond King-Hele, F.R.S. about the way amateur observers can sight and track satellites, and about the value of these observations to space research.
No cast information available.