The aftermath of the death of a massive star is shown in beautiful detail in this new composite image of G292.0+1.8. In color is the Chandra X-ray Observatory image - easily the deepest X-ray image ever obtained of this supernova remnant - and in white is optical data from the Digitized Sky Survey. Although considered a "textbook" case of a supernova remnant, the intricate structure shown here reveals a few surprises. Chandra Image of G292.0+1.8

Supermovas are explosions or implosions

First of all, excuse me for my not good English. Now I wander if supernovas (except for the type Ia) are really explosions, or instead are implosion of big stars, like it happens for the white dwarf and for the neutron star!
What do you think about this?

Thanks for your question. A

Thanks for your question. A supernova caused by the destruction of a massive star involves an implosion, when the nuclear fuel is exhausted, followed immediately by an explosion. See this page for more details:

P. Edmonds, CXC

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