February 4, 2023 AI is helping us search for intelligent alien life—and we've found 8 strange new signals type='text/javascript'> googletag. To create a set of training data, Peter inserted simulated signals into real data, and then used this dataset to train an AI algorithm called an autoencoder. A non-detection could also mean we haven't looked for the right type of signals, or our telescopes aren't yet sensitive enough to detect faint transmissions from distant exoplanets