Machine learning is quietly rewriting the rules of the cosmic hunt for company. Instead of waiting to recognize familiar ...

The unusual behaviour of interstellar comet 3I/ATLAS has reignited online debate, but astronomers say the gaps in public ...

Most stars in the cosmos are small, cool red dwarfs, yet the only intelligent life we know orbits a relatively rare yellow ...

An international team of researchers pointed the largest single-dish radio telescope in the world at 3I/ATLAS.

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

When we imagine contact with extraterrestrial intelligence, we tend to picture messages: radio signals, mathematical codes, or perhaps a universal language waiting to be discovered. But what if alien ...

For decades, the search for alien intelligence has revolved around the question: if someone out there is listening, how could they hear us? A new study combining data from Penn State and NASA’s Jet ...

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Alien: Earth’s fourth episode, “Observation,” is another aptly titled entry for the franchise’s first foray into the small screen. Showrunner Noah Hawley and friends pump the brakes on the ...

The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we might have a chance at detecting their ...