MIT physicists have proposed a way to make a super sci-fi-sounding device: a neutrino 'laser,' which could help us probe the mysteries of the Universe.

Neutrinos are the most abundant particles that have mass, but in a cruel irony, they're extremely elusive, earning them the term 'ghost particle'. Although there are trillions of them zipping through your body at any given moment, they interact with matter so rarely that they're almost impossible to study.

So, physicists at MIT and the University of Texas at Arlington have outlined a concept for a neutrino laser that could help wrangle the wayward particles into a concentrated beam for easier analysis.

To make one, you'd theoretically need to cool a cloud of rubidium-83 atoms to a temperature colder than interstellar space to make t

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