Time, as I have noted previously on this blog, is nature's way of keeping everything from happening all at once. Time is also what got away from me last week, which is why I'm posting this 'I'm still here!' message instead of a full length post.
The time lapse image, from Astronomy Picture of the Day, shows Mars and the star Regulus close together in the sky, and close to the same apparently brightness. The telescope was deliberately jiggled to get this pattern, which shows the scintillating ('twinkling') effect on the atmosphere on light sources of very small angular dimensions.
Also from APOD, this impressive - and a bit sobering - X-ray image of the remnant from Tycho's supernova of 1572.
Consider this an open thread.