Dark matter is old stuff and egg shaped galaxies evolve within it
SYDNEY: Old galaxies swathed in dark matter clustered together early in the history of the universe, and eventually evolved into the most massive galaxies known today, British scientists say.
The research, led by University of Nottingham PhD student Will Hartley, was presented earlier this week at the Royal Astronomical Society National Astronomy Meeting in Belfast, Ireland.
Original wonders before our eyes: Elliptical galaxies evolved early in the life of the universe (about 9.7 million years ago) within massive non-radiant dark matter halos - or cocoons, or nests, or fences - and kept growing into giants, the largest, most massive galaxies around. It may have happened that way, according to Will Hartley and his team, since the older, more distant smaller elliptical galaxies had already formed at this earlier stage of the universe according to their observations.
Metaphorically - and possibly quasi-scientifically - musing, I suppose these cosmic eggs and shells are still developing naturally, like chicken eggs (from the Cosmic Bird, of course). Will these egg-shaped galaxies ever develop fully, then hatch? Would this kind of hatching happen when any of the giantest, oldest of the elliptical galaxies die a natural death, too far away in space-time for us to observe, ever? I wonder what universal life shapes would emerge from such birthings - or have already emerged somewhere in this rain or pond-scum drop of a universe we inhabit!
~ Crabbee
