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. This Hubble ...
This stunning image from the Hubble Space Telescope captures a region called G35.2-0.7N, renowned as a hotbed for high-mass star formation. The Crab Nebula is the expanding remnant of a star's ...