Seeing Stars (spatially resolved images of Betegeuse)

As reported in Science Daily, two recent papers report on spatially resolved images of the star Betegeuse (alpha Orionis) and its surrounding gas envelope. A nicely color-scaled image is also NASA's Astronomy Picture Of The Day (attached).

Thanks to The Science Forums for the pointers!

Picture of Seeing Stars (spatially resolved images of Betegeuse)