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Protein fibrils accumulate in the brain during neurodegeneration. Cryo-electron microscopy has now uncovered fibrils of an unexpected protein.
Astronomers in 2017 caught an image of a supermassive black hole in a galaxy far, far away. Doing it in our own galaxy is a huge milestone.
Were Hitler’s SS henchmen willing executioners fueled by racial propaganda or mindless servants vying for promotions?
After years of analysis, the Event Horizon Telescope team has finally revealed what the Milky Way's central black hole looks like.
In Sun-like stars, hydrogen gets fused into helium. In the Big Bang, hydrogen fusion also makes helium. But they aren't close to the same.
Paintings played an important role in these ancient civilizations. Unfortunately, pigment is not nearly as durable as marble.
The apes taught sign language didn't understand what they were doing. They were merely "aping" their caretakers.
4mins
Our world would be impossible without quantum mechanics — but we still don’t have a narrative of how it works.
John Templeton Foundation
Drop sodium in water, and a violent, even explosive reaction will occur. But quantum physics is needed to explain why.
We have long thought that Pluto was completely frozen solid, but the discovery of cryovolcanoes challenges that assumption.
Speculation about the existence of aliens goes all the way back at least to the Greek philosophers. Their arguments will sound familiar.
Safety through technology is no bad thing—Nietzsche himself sought doctors and medicines throughout his life—but it can become pathological.
Equations that describe time travel are fully compatible and consistent with relativity — but physics is not mathematics.