Science, Maths & Technology
How can you tell if a signal from space is an alien communication?
...opened up a whole new area of astrophysics, so could hardly be considered a disappointment. There have been other cases. In 1977, astronomers detected a radio burst dubbed the “WOW signal” – and they have been debating its origin for decades. Only recently was it suggested that there could be a natural explanation: emission from a passing comet that happened to lie...