[stevespang]

Let's not forget that this neutron star is measured at 5.8 kiloparsec distance from earth which is 18,917.1 light years.

Even if observable electromagnetic radiation was traveling at the speed of light, which most is not, we are looking at ancient history, because once this EM reaches earth we are studying phenomena that occurred >189 centuries ago.

We don't have a way to know if this star is even still there.

Everything studied in astronomy at significant light years distance is ancient phenomena, we are just seeing it/sensing it/evaluating it now.

[occamschainsaw]

The concept of “still there” in time is not very meaningful for cosmology. All of our observations are in ~space-time~ not just space or time.