This color-composite image of the Helix Nebula was created from images obtained using the the Wide Field Imager, an astronomical camera attached to the 2.2 meter Max-Planck Society/ESO telescope ...

Helix Nebula: Helix Nebula is a planetary nebula, which is formed when a star like the Sun runs out of fuel, expands and its outer layers puff off, and then the core of the star shrinks.

a network of radio dishes atop Mauna Kea in Hawaii — to gather high-resolution images of the Ring Nebula. Specifically, they mapped movements of carbon monoxide gas molecules that outline the ...