[Credit: NASA and the Hubble Heritage Team (AURA/STScI), S. Smartt (IoA) & D. Richstone (U. Michigan) et al.]
“...recent observations have shown that the gas in the outer regions of this photogenic spiral is rotating in the opposite direction from all of the stars!”
Oh, truly not!
Perhaps the gas is moving slowly, or turbulence causes it to roll, so it appears retrograde. But I seriously doubt it is able to COMPLETELY oppose the gravitationally caused rotation. It doesn’t have enough mass.
Beautiful, even if she is mixed up.
That is a really GOOD one!