Season 35 Episodes13
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Guarding Their Secrets
May 26, 1991
Dr Ian McHardy , of Southampton University, joins Patrick Moore to give the latest on BL Lacertae, the object found in the northern constellation of Lacerta, the Lizard.
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Episode Summary
"Guarding Their Secrets" is episode 6 of The Sky at Night season 35. It aired on May 26, 1991.