Astronomy
Pulsars: The Cosmic Lighthouses
Quick fact
Some pulsars rotate more than 700 times per second – faster than a kitchen blender – yet their beams are so stable that they rival atomic clocks for precision.
Why this is interesting
Imagine a celestial object that spins hundreds of times per second, sweeping a beam of light across the universe like a cosmic searchlight. What could be so extreme that it creates a lighthouse in space?