Moon and Smoke Rings from Mt. Etna

By |2024-04-22T09:09:17-04:00April 22nd, 2024|Categories: NASA News, Uncategorized|Tags: , , , , , |

Photo of the Day Yes, but can your volcano do this? To the surprise of some, Mt. Etna emits, on occasion, smoke rings. Technically known as vortex rings, the walls of the volcano slightly slow the outside of emitted smoke puffs, causing the inside gas to move faster. A circle of low pressure develops [...]