Twenty years ago, physicists set out to investigate a mysterious asymmetry in the proton’s interior. Their results, published today, show how antimatter helps stabilize every atom’s core.
We don’t know why the universe appears to be expanding faster than it should. New ultra-precise distance measurements have only intensified the problem.
A team in Paris has made the most precise measurement yet of the fine-structure constant, killing hopes for a new force of nature.
Recent experiments show that particles should be able to go faster than light when they quantum mechanically “tunnel” through walls.
Roger Penrose, Reinhard Genzel and Andrea Ghez were awarded the Nobel Prize in Physics for their studies of black holes.