S14·E5 When Mercury Crosses the Sun
Synopsis
On 9 May the tiny planet Mercury will be seen as a black dot in transit across the sun's disc. Because it orbits close to the sun, Mercury has always been difficult to observe, and astronomers can only guess at the nature of this planet. Patrick Moore explains how a spacecraft will fly past Mercury in 1973 and send back television pictures.
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Frequently Asked Questions
When did Season 14 Episode 5 of The Sky at Night air?
Season 14, Episode 5 ('When Mercury Crosses the Sun') originally aired on April 28, 1970.
How long is Season 14 Episode 5 ('When Mercury Crosses the Sun')?
The episode follows the standard broadcast runtime for The Sky at Night.
What happens in The Sky at Night Season 14 Episode 5?
On 9 May the tiny planet Mercury will be seen as a black dot in transit across the sun's disc. Because it orbits close to the sun, Mercury has always been difficult to observe, and astronomers can only guess at the nature of this planet. Patrick Moore explains how a spacecraft will fly past Mercur...
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