Curious Spiral Spotted by ALMA Around Red Giant Star R Sculptoris

Observations using the Atacama Large Millimeter/submillimeter Array (ALMA) have revealed an unexpected spiral structure in the material around the old star R Sculptoris.



via LiveScience.com http://www.livescience.com/25000-curious-spiral-spotted-by-alma-around-red-giant-star-r-sculptoris.html