'Cocoon' at 40: Ron Howard's sci-fi smash is proof they don't make them like they used to
Hubble Examines Stars Ensconced in a Cocoon of Gas
First close-up image of a star outside Milky Way shows supergiant in ‘cocoon’ | Astrophysicists say material may suggest star is dying and ejection of matter signals coming supernova
Supercharged 'cocoon of energy' may power the brightest supernovas in the universe