Entanglement is a surprising physics phenomenon where objects remain linked despite being apart. Traditionally observed in photons, the ATLAS experiment at the Large Hadron Collider has now found entanglement in top quarks, the heaviest known particles. This discovery, detailed in a new Nature paper, shows that entangled objects form a single system without physical connection. Measuring one object reveals information about the other, even at great distances. This concept is also explored in the sci-fi series “3 Body Problem,” where entangled supercomputers enable communication across light-years.