Astronomy
The Role of Magnetic Fields in Shaping Planetary Nebulae
Quick fact
Although they are called 'planetary nebulae,' they have nothing to do with planets. They are the outer layers of dying Sun-like stars, and some of them exhibit perfectly symmetric bipolar lobes—a shape that strongly suggests an invisible agent: magnetic fields.
Why this is interesting
You've likely seen the breathtaking, colorful images of planetary nebulae—some round, some butterfly-shaped, some intricate rings. But what invisible force molds these cosmic sculptures?