Allen Telescope Array

The Allen Telescope Array at the Hat Creek Radio Observatory. Credit: Seth Shostak/SETI Institute

SETI scanned 3I/ATLAS for artificial signals – and found none

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Although all observations of 3I/ATLAS point to a natural comet, SETI researchers took advantage of its rare visit to search for technological signatures. The search did not turn up an artificial signal, but it showed that it is possible to quickly check
The Allen Telescope Array. Credit: SETI Institute

Pulsar's twinkle reveals the hidden fabric of space

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SETI Institute observations of the Allen Telescope Array over about 10 months have shown how the twinkling of pulsars varies over time, creating tiny delays that require correction in precise timing measurements. The subtle twinkling of a pulsar reveals
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