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 ...
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 ...
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 ...