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One question is why the universe has more matter than antimatter if the Big Bang created both in equal measure.

By measuring the neutrinosand their antimatter partners, antineutrinos, in both locations, physicists can study how these particles change their type as they travel, a phenomenon known as neutrino oscillation.

One type fires electrons into their antimatter counterparts, positrons, but these e+e- colliders struggle to reach high energies.

It can shed light on 'antimatter' which existed at the beginning of the Universe, and studying it could revolutionise physics, cancer treatment, and maybe even space travel.

They come in three types—electron, muon, and tau—that morph into one another, a phenomenon that might help explain how the universe generated more matter than antimatter.