The Sky at Night (1957)

Season 5: Episode 1

Patrick Moore talks with W.M. Baxter, Secretary of the British Astronomical Association, about the mysterious dark areas, many thousands of miles across, on the sun's surface, known as sunspots. Besides discussing whether these affect the weather, they also consider the effect of solar flares on future manned space-travel. Particles emitted from these may turn out to be one of the worst hazards of all.