Hubble Space Telescope image of supernova 1994D in galaxy NGC 4526

Supernova 2005cs in the Whirlpool galaxy, M51

Amateur astronomer catches first glimpses of birth of supernova (core-collapse SN 2016gkg in NGC 613)

Crab Nebula (Messier 1, Supernova 1054)

Chandra (x-ray, blue) and Hubble (visible, red) movies of the Crab nebula

Fritz Zwicky, pioneer of supernovae, neutron stars, and dark matter

Jocelyn Bell, discoverer of pulsars (1967)

Pulsar “scruff”

Supernova 1987A in the Large Magellanic Cloud (LMC)

After: SN 1987A	Before: Blue supergiant

Wide angle view

Evolution

Video	Computer simulation

Cassopeia A (Supernova 1658), a core-collapse supernova

The binary star system HD 49798, which contains a 1.3 solar mass accreting white dwarf that might one day undergo a thermonuclear supernova (Type Ia)

HD 49798

Artist's impression

Nova GK Per (outburst in 1901). x-ray, visible, radio.

Characteristic light curve of a thermonuclear supernova

Tycho (Supernova 1572), a thermonuclear supernova

X-ray image	The donor survivor (optical)

Chandra movie of expansion of Tycho

Supernovae at cosmological distances