D ay 21 of the 2024 Space Telescope Advent Calendar: inside a chaotic nebula. Sharpless 2-106 is a nebula several light-years ...

Crab Nebula: This Hubble mosaic is the highest resolution image ever made of the entire Crab Nebula, which is located 6,500 ...

When a mid-sized star like the Sun runs out of fuel, it expands and its outer layers puff off, and then the core of the star ...

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.

M2-9 is a striking example of a "butterfly" or a bipolar planetary nebula. Another more revealing name might be the "Twin Jet Nebula." If the nebula is sliced across the star, each side of it ...

Captured by the NASA/ESA Hubble Space Telescope, this image reveals the Serpens Nebula, a stellar nursery located about 1,300 light-years away. IC 63, or the Ghost Nebula, is 550 light-years away, ...