The Helix Nebula is an example of a planetary nebula. Though it looks like a bubble or eye from Earth’s point of view, the Helix is actually a trillion-mile-long tunnel of glowing gases. In its center ...
The image, taken by the European Southern Observatory's (ESO) Very Large Telescope (VLT) at the Paranal Observatory in Chile, captures an emission nebula — a bright cloud of ionized gas that ...
This towering structure in the Eagle Nebula is a 9.5 light-year-high column of gas and dust from a stellar nursery. This image shows N90, where bright young stars carve a cavity, with distant galaxies ...