Quantum entanglement is a mysterious phenomenon where two objects, once entangled, they behave the same way and what happens to one object will immediately happen to another object, even if the two objects are separated by millions of light years. Until recently, scientists had only been able to entangle tiny particles, like photons. This week research was published that showed that scientists were able to entangle two millimeter-sized diamonds. The two objects were only entangled for 7 picoseconds, but they were entangled nonetheless. Oh yeah, they managed to entangle the diamonds at room temperature, which is also a first. Normally, entangling objects requires extremely cold temperatures. This is what will hopefully be just the first step in being able to entangle large objects for long periods of time, which will lead to better supercomputers, as well as unraveling the mysteries of the universe.