[TXnMA]

That's a fascinating image! I don't recognize it as being from the APOD archives. Guess I'll have to do a search...

It sorta reminds me of what the matter shell expelled from a recently-exploded nova/supernova might look like...

Pray tell: what is it?

[Swordmaker]

It sorta reminds me of what the matter shell expelled from a recently-exploded nova/supernova might look like...

Pray tell: what is it?

You are right. Good analysis!

It is the Chandra x-ray image of Tycho’s Star, the supernova that Tycho Brahe saw in 1572.

Tycho's Star, remnants of a Supernova.
Thunderbolts.info Picture of the Day
Picture Credit: NASA/CXC/Rutgers/J.Warren & J.Hughes et al.