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Archive for the ‘alien life’ category: Page 22

Feb 21, 2023

A Deep-learning Search For Technosignatures Of 820 Nearby Stars

Posted by in categories: alien life, robotics/AI

The goal of the Search for Extraterrestrial Intelligence (SETI) is to quantify the prevalence of technological life beyond Earth via their “technosignatures”. One theorized technosignature is narrowband Doppler drifting radio signals.

The principal challenge in conducting SETI in the radio domain is developing a generalized technique to reject human radio frequency interference (RFI). Here, we present the most comprehensive deep-learning based technosignature search to date, returning 8 promising ETI signals of interest for re-observation as part of the Breakthrough Listen initiative.

The search comprises 820 unique targets observed with the Robert C. Byrd Green Bank Telescope, totaling over 480, hr of on-sky data. We implement a novel beta-Convolutional Variational Autoencoder to identify technosignature candidates in a semi-unsupervised manner while keeping the false positive rate manageably low. This new approach presents itself as a leading solution in accelerating SETI and other transient research into the age of data-driven astronomy.

Feb 21, 2023

How False Positives Impact the Search for Extraterrestrial Life

Posted by in category: alien life

Double Jeopardy with False Positives? And how this Relates to the Search for Extraterrestrial Life.

Posted on Big Think, direct weblink at:


Posted on Big Think.

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Feb 21, 2023

Pass the NaCl: Scientists create new types of salt crystals that could exist on Europa

Posted by in categories: alien life, chemistry

A prime target in the search for extraterrestrial life is Europa, a moon of Jupiter that’s covered with a sheet of salty ice. But what kind of salt is there? Researchers say they’ve created a new kind of salt crystal that could fill the bill, and perhaps raise hopes for finding life under the ice.

This salt crystal is both exotic and common: It’s actually table salt — also known as sodium chloride, with the chemical formula NaCl — but bound up with water molecules to form a hydrate that doesn’t exist naturally on Earth.

Feb 21, 2023

Andrew Strominger: Black Holes, Quantum Gravity, and Theoretical Physics | Lex Fridman Podcast #359

Posted by in categories: alien life, mathematics, military, particle physics, quantum physics

Andrew Strominger is a theoretical physicist at Harvard. Please support this podcast by checking out our sponsors:
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EPISODE LINKS:
Andrew’s website: https://www.physics.harvard.edu/people/facpages/strominger.
Andrew’s papers:
Soft Hair on Black Holes: https://arxiv.org/abs/1601.00921
Photon Rings Around Warped Black Holes: https://arxiv.org/abs/2211.

Continue reading “Andrew Strominger: Black Holes, Quantum Gravity, and Theoretical Physics | Lex Fridman Podcast #359” »

Feb 20, 2023

Are aliens calling? Scientists find 8 suspicious radio signals in space

Posted by in categories: alien life, information science, robotics/AI

But with so many signals that could happen, how can scientists possibly sift through all of them to try to find a possible alien transmission?

Well, it turns out, scientists found the answer: Don’t. Instead, let AI do it for you.

That’s exactly what the researchers behind this study did, utilizing an AI algorithm to look through signals from a designated 820 different star systems. These targets were made from the Hipparcos catalogue, a collection of data from 118,200 stars made by the European Space Agency’s (ESA) Hipparcos satellite, and totaled over 480 hours of data.

Feb 20, 2023

Life on Venus? Planet’s Clouds Could Host Extraterrestrial Intelligence

Posted by in category: alien life

While Venus has long been ignored as a potential home for alien existence, MIT researchers say that the skies of Venus may be hosting aerial extraterrestrial life.

Phosphine Found

Continue reading “Life on Venus? Planet’s Clouds Could Host Extraterrestrial Intelligence” »

Feb 19, 2023

Alien Civilizations Could Use Black Holes as Massive Quantum Computers

Posted by in categories: alien life, computing, existential risks, quantum physics

It actually makes a lot of sense from a computing standpoint.


If life is common in our Universe, and we have every reason to suspect it is, why do we not see evidence of it everywhere?

This is the essence of the Fermi Paradox, a question that has plagued astronomers and cosmologists almost since the birth of modern astronomy.

Continue reading “Alien Civilizations Could Use Black Holes as Massive Quantum Computers” »

Feb 19, 2023

NASA Has Jumped on the Generative AI Design and Manufacturing Bandwagon

Posted by in categories: alien life, robotics/AI

NASA is building spacecraft parts that look alien. In a way, they are because it is a generative manufacturing AI that is the designer.

Feb 19, 2023

Scientists From Tennessee Are Trying To Open a Portal To a Parallel Universe

Posted by in categories: alien life, particle physics

Scientists at Tennessee’s Oak Ridge National Laboratory are attempting to establish a doorway to a parallel reality. The goal of the project is to depict a world that is nearly comparable to ours and where life is mirrored. The experiment’s leader, Leah Broussard, told NBC that the strategy is a little crazy, but it will completely transform the game. If the studies are successful, particles will be able to morph into images of themselves, allowing them to burrow through a solid wall. This might demonstrate that the cosmos we observe is merely half of what exists. Broussard revealed that he believes the test will yield a result of zero.

Feb 18, 2023

Goldilocks zone: Everything you need to know about the habitable sweet spot

Posted by in category: alien life

The habitable zone is the region around a star where an orbiting planet could host liquid water and, therefore, possibly support life.

The habitable zone is also known as the “Goldilocks zone” because planets orbiting at that “just right” distance from a star are not too hot or too cold to host liquid water. If planets are closer to their star, the water turns to steam; if they’re farther, it freezes.

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