Copernicus's remains reburied in Polish cathedral

The remains of Nicolas Copernicus, the 16th century father of modern astronomy, were reburied in a Polish cathedral Saturday as a cleric expressed regret for Church condemnation of his theories.

Attempt at 'top kill' method to clog oil leak delayed

A make-or-break attempt to clog a ruptured pipe gushing oil into the Gulf of Mexico with a method dubbed the "top kill" has been delayed until at least Tuesday, officials said Friday.