Do We Really Know What Becomes a Type Ia Supernova?

Observations detect a new long-period radio transient associated with supernova remnant G22.7-0.2

Unprecedented image may reveal impending supernova that could be visible from Earth

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