Mukremin Kilic

An old star like the Sun, at the end of its life, shrinks into a white dwarf — a dense sphere about the size of Earth. After that, it simply cools down, like embers in a campfire. But some white dwarfs somehow stay hot for billions of years. Astronomers studied such objects within a radius of one hundred parsecs from us and found an unexpected pattern.

In 1967, astronomers caught the first radio signal from a distant cosmic lighthouse — a pulsar. Since then, thousands of these stellar remnants have been discovered, slicing through space with beams like a revolver's burst.