Scientists used the 100-metre Green Bank Telescope to look for alien signals but detected no radio signals from 3I/ATLAS.

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With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

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Unlike the comets that call our solar system home, 3I/ATLAS is a cosmic nomad on a hyperbolic trajectory — a one-time flyby ...

As the year draws to a close, we take a look at some of the biggest science stories of the year, and why they matter.

Hubble's latest images of interstellar comet 3I/ATLAS reveal sustained, jet-like eruptions and a carbon dioxide-rich coma ...