Ancient mystery solved: Why was Roman concrete so durable?
Earth’s magnetic field supports biblical stories of destruction of ancient cities
How flu got milder since 1918 pandemic
Our ancestors first developed humanlike brains 1.7 million years ago
How Greek philosopher Democritus predicted the atom in 400 B.C.E.
Wild mammals are making a comeback in Europe thanks to conservation efforts 
Svante Pääbo wins Nobel Prize for discovering an extinct human species via DNA
Three reasons “you” won’t return after this life
Paradox-free time travel is “logically” possible, say physicists
A neural network discovered Copernicus’ heliocentricity on its own