Circumstellar Debris Disk Around Beta Pictoris
The 2012 image (bottom) is the most detailed picture to date of a large, edge-on, gas-and-dust disk encircling the 20-million year-old star Beta Pictoris. The 1997 Hubble image (top) shows the disk's dust distribution has barely changed over 15 years.
Credits: NASA, ESA, University of Arizona