SETI tagged posts

We Should Find Extraterrestrial Life within 60 light-years if Earth is Average, professor claims

If earth is average, we should find extraterrestrial life within 60 light-years

In 1960, while preparing for the first meeting on the Search for Extraterrestrial Intelligence (SETI), legendary astronomer and SETI pioneer Dr. Frank Drake unveiled his probabilistic equation for estimating the number of possible civilizations in our galaxy—aka The Drake Equation. A key parameter in this equation was ne, the number of planets in our galaxy capable of supporting life—aka “habitable.” At the time, astronomers were not yet certain other stars had systems of planets. But thanks to missions like Kepler, 5,523 exoplanets have been confirmed, and another 9,867 await confirmation.

Based on this data, astronomers have produced various estimates for the number of habitable planets in our galaxy—at least 100 billion, according to one estimate...

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Will Machine Learning help us find Extraterrestrial Life?

Will machine learning help us find extraterrestrial life?
Examples showing the four types of training data. Credit: Nature Astronomy (2023). DOI: 10.1038/s41550-022-01872-z

Researchers have applied a deep learning technique to a previously studied dataset of nearby stars and uncovered eight previously unidentified signals of interest.

When pondering the probability of discovering technologically advanced extraterrestrial life, the question that often arises is, “if they’re out there, why haven’t we found them yet?” And often, the response is that we have only searched a tiny portion of the galaxy. Further, algorithms developed decades ago for the earliest digital computers can be outdated and inefficient when applied to modern petabyte-scale datasets...

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