https://apnews.com/98223ef092294444b182d03ee7ae6594

GENEVA (AP) — Scientists behind the world's largest atom smasher have laid out their multibillion-euro vision to build an even bigger one, in hopes of unlocking even more secrets of matter and the universe in the coming decades.

Officials at CERN, the European Organization for Nuclear Research, presented Tuesday their study for a "Future Circular Collider" inside a 100-kilometer circumference tunnel which could start operating in 2040.