A Dust Particle Suspended in Light Hunts for Dark Matter ⚡ экспресс
Original: "Search for Dark Matter Scattering from Optically Levitated Nanoparticles"
A tiny particle, trapped by a laser, has turned into supersensitive scales for weighing the invisible matter of the Universe.
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A tiny dust grain, trapped by a laser in a vacuum, can feel the jolt of a dark matter particle — the mysterious 'glue' of the Universe. The new detector is billions of times more sensitive than a bathroom scale: it would notice the impact of a virus. This is a step toward uncovering what the cosmos is really made of.
🎯 The sensor's sensitivity is such that if you held such a nanoparticle in your palm, you'd feel a mosquito bite on a neighboring continent.