Sorry I haven't posted in a long time. I hope to start updating more regularly soon, but for now here's an amazing video. For decades, it has been a mystery how galaxies form, and the discoveries of dark matter and dark energy have to some extent made things more difficult. But now, a computer simulation that required 8 months of calculation on a Swiss supercomputer has produced a very realistic galaxy - for the first time.
And you can watch it right now!