Astronomy
Pulsars: Cosmic Lighthouses
Quick fact
The fastest known pulsar, PSR J1748-2446ad, spins 716 times per second — faster than a kitchen blender.
Why this is interesting
Imagine a lighthouse beam sweeping across the ocean, appearing as a flash to a distant ship. Now imagine that lighthouse is a city-sized star spinning hundreds of times per second — how does this cosmic lighthouse work?