I don't think liquid can exist in space.

If I remember from undergrad thermodynamics, the vapor dome describes states where liquid can exist, and (gas) pressure must be present.

https://www.sciencefocus.com/space/strange-reason-space-wont...

> don't think liquid can exist in space

Ordinarily, no. Whether supernova remnants count as “space” might be an alternate phrasing of my question.

Even before it exploded it would have been less dense than water. It just goes from a hot cloud of gas to a cold one.

As I understand it, a white dwarf is "electron degenerate matter," which is more dense.

https://en.wikipedia.org/wiki/Degenerate_matter

> liquid iron is sitting around radiating its tail off

With the energy imparted by the cataclysmic devastation of a supernova I'd assume it's a plasma that cools and sublimates into a gas. These clouds of gas typically have magnetic fields that can bring particles close together where they form dust/grains.

Here you go bro: https://orca.cardiff.ac.uk/id/eprint/110293/1/10.1007%252Fs1...

:D Thank you!