Okay, so you know how sometimes you lose things and they're really hard to find because they're so small and hard to see? Well, scientists are trying to find something really small called dark matter. It's called dark matter because we can't see it with our eyes or telescopes, but we know it exists because it affects the way stars and galaxies move.
To try and find this dark matter, scientists use a big machine called a cryogenic dark matter search. Cryogenic means really, really cold. The machine makes things so cold that they almost stop moving. This helps scientists look for tiny particles called WIMPs (short for weakly interacting massive particles) that might be dark matter. The WIMPs will move through the machine and if they hit something, they might give off a little bit of energy. The machine can detect this energy and scientists use it to learn more about the WIMPs and the dark matter they might be part of.
So, in simpler terms, scientists are using a really cold machine to look for tiny particles that might be part of something we can't see but know exists because it affects the way stars and galaxies move.