An ordinary black hole is a bottomless pit from which not even light can escape. However, physicists have found a way to turn this pit into a through-tunnel — a wormhole. Taking as a basis the black hole model that Karl Schwarzschild derived in 1916 from Einstein's equations, scientists added an unusual ingredient — negative energy. This substance has antigravity: it doesn't attract, but pushes space apart.
By colliding two streams of such energy, moving at the speed of light, you can cause a black hole to be reborn into a warped passage connecting distant regions of space. The main surprise: to keep the tunnel from collapsing, its throat must be wide enough — a narrow sleeve would crumple under its own weight, while a spacious one remains gaping, like a mountain ridge pierced through.
Such dynamics show for the first time the birth of a traversable wormhole from a black hole. And negative energy is not fantasy: it is already produced in labs using the Casimir effect. Someday this will allow us to reach other stars not in thousands of years, but in an instant.
🎯 Negative energy can be created in the lab using the Casimir effect: two metal plates in a vacuum attract each other because fewer virtual particles are born between them than outside.
🎬 In the film Interstellar, a wormhole is used for interstellar travel — exactly what scientists dream of.