Yet as the song expands in scope caking on layer upon layer of glorious harmonies, overblown guitars, swirling feedback and the propulsive thunder of drums "Albatross" begins to buckle like a collapsing star.

NPR: The Besnard Lakes: Filling The Room With Sound

Secondly, if it enters a jet engine the intense heat of the engine can fuse it to the interior of the engine with a caking of hot glass, which ultimately can cause the engine to cut out completely.

BBC: Icelandic volcanic ash alert grounds UK flights