Jets in a post-AGB envelope
The authors present the first direct evidence of a jet shaping the circumstellar envelope of a post-AGB star.
The Ring Nebula in 3D
Recent images from the Hubble Space Telescope reveal a much more complex structure of the Ring Nebula than previously thought. The team presents a 3-D model of lobes and rings, with multiple ionization fronts and knots.
A Binary Butterfly
This paper looks into the heart of Minkowski’s Butterfly Nebula to answer the question: is there one star or two at work in the formation and evolution of this nebula?
A planetary nebula with serious pollution problems
Miszalski et al. show that the well-known planetary nebula Abell 70 has a white dwarf companion at its center with a messy past.
Carbon chemistry in planetary nebulae
Planetary nebulae form during late stages of the evolution of low to intermediate mass stars. In this paper, Guzman-Ramirez et al. explore two possible explanations for the presence of carbon in Galactic Bulge planetary nebulae.