Because the LHC isn't big enough, it seems

[ThePaladin]

There are plans for even larger machines:

The Large Hadron Collider (LHC) is a giant 17-mile underground loop full of supercooled magnets, thirty-foot particle detectors, and miles of accelerator tubes.

It's the largest machine that humans have ever built.

But there are plans for even larger machines.

One, a whopping 50-mile-long circular particle accelerator with energy collisions nearly 10 times as powerful as the LHC, might be a little too ambitious for the near future. We don't even know how to build magnets capable of accelerating particles to that kind of energy level.

The second idea, however, is a 20-mile-long straight line accelerator and it has a good chance of being built in the next few years.

Just because they can?