NASA Ames(@NASAAmes):Bursting in (galactic) air 🌟 Glittering here like a cosmic firework is N44, a unique and complex nebula captured by @NASAHubble. One of its most distinctive features is a dark, starry gap—a “superbubble”—spanning about 250 light-years wide. Though not actually bursting, the hole is something of a mystery to astronomers: Stellar winds may have driven the gas away or expanding supernovae could’ve created the cosmic cavern. Learn more:

2026.07.02 16:00

Bursting in (galactic) air 🌟 Glittering here like a cosmic firework is N44, a unique and complex nebula captured by @NASAHubble. One of its most distinctive features is a dark, starry gap—a “superbubble”—spanning about 250 light-years wide. Though not actually bursting, the hole is something of a mystery to astronomers: Stellar winds may have driven the gas away or expanding supernovae could’ve created the cosmic cavern. Learn more: