The Twin Jet Nebula: The Twin Jet Nebula, or PN M2-9, is a striking example of a bipolar planetary nebula. The Hourglass ...
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 ...
D ay 21 of the 2024 Space Telescope Advent Calendar: inside a chaotic nebula. Sharpless 2-106 is a nebula several light-years ...
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 ...