In 1950, the physicist Enrico Fermi sat down to lunch with colleagues and asked a question that has haunted astronomers ever since. If the universe is so vast, so old, and so full of stars, where is everybody? A new study has turned that question around and c…
It is one of the most famous questions in science, and it was asked, as legend has it, over lunch. Enrico Fermi, the physicist who helped build the first nuclear reactor and whose name graces a unit … [+4662 chars]
