Brace yourselves: Scientists have created matter made from light
. The new form of matter was just a simple molecule, made up of two photons (the particles of light), but — holy crap, they made a molecule out of photons! This is very cool, but according
, it also means scientists created lightsabers the other day. Alas, we’re not quite there yet. But for once, it’s not the media’s fault — the Star Wars talk started with Harvard physicist Mikhail Lukin, who said in a press release
, “It's not an in-apt analogy to compare this to light sabers.”
What Lukin meant, though, was just that his team of Harvard and MIT physicists had created a form of light that can interact with itself. Normally, photons are massless particles that don’t interact with one another — as anyone who’s tried to recreate lightsaber duels with flashlights (or ...