Unusual Fast-Moving ‘Ripples’ Discovered in Planetary Debris Disk Surrounding Nearby Star

Hubble and VLT images of the “ripples” within the debris disk surrounding the young star AU Microscopii. Image Credit: ESO/NASA/ESA

Planetary debris disks, or protoplanetary disks, are some of the most interesting phenomena in astronomy – these giant clouds of dust and gas surrounding young stars are the birthplaces of new planets. Now, astronomers [...]