The 400 year-old mystery and controversy about the death of the Danish astronomer Tycho Brahe in 1601 appears to have been solved – he did not die from mercury poisoning and probably died of natural causes.
Initial Danish analyses of a hair from Tycho Brahe’s beard, retrieved following his disinterment by Danish and Czech scientists from the Tyn Cathedral in Prague two years ago, show he did not have dangerous levels of mercury prior to his death.



























