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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
Oumuamua, the first interstellar object discovered in the solar system, has sparked renewed interest in how to distinguish between natural objects and possible technological signatures. The new study highlights that most of the solar system has not yet been scanned at sufficient resolution to definitively rule out small artificial objects. Credit: NASA, ESA, and J. Olmsted and F. Summers / STScI.

Are alien spacecraft hiding in the solar system? New study claims: We've barely looked

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A new study does not claim to have found alien spacecraft, but rather highlights another problem: Most of the solar system has not yet been scanned with sufficient resolution to rule out small artificial objects or technological remnants.
Searching for extraterrestrial intelligence using radio telescopes. Illustration: depositphotos.com

What happens if a signal from extraterrestrial intelligence is detected? Scientists now have updated rules

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The International Academy of Astronautics has updated SETI protocols: scientific verification before announcement, transparent publication of data, protection of researchers — and a ban on responding to a signal without international consultation.
An artist's impression of the exoplanet K2-18b, a world larger than Earth orbiting a red dwarf and being studied in search of possible signs of life or technological signatures.

K2-18b Scanned for Alien Signals – But No Technological Signature Found

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SETI researchers used the VLA and MeerKAT telescope to search for narrow radio signals from the intriguing exoplanet. None survived the noise filters, but the method will be used in future searches
A Dyson sphere is a hypothetical megastructure built by an advanced civilization to capture the vast amounts of energy emitted by a star. Illustration: depositphotos.com

Are the coldest "stars" in the galaxy alien megastructures?

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Astronomers propose a new way to identify alien megastructures: look for extremely cold "stars" that emit mostly infrared light and appear free of dust.
Radio telescopes searching for intelligent signals in space. Illustration: depositphotos.com

Study examines possibility that extraterrestrial technological signals passed near Earth without being detected

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Even if signals from technological civilizations reached our region, they may not have been detected due to limitations in range, duration, and intensity. The researchers conclude that the chance of detection will increase mainly with prolonged searches over greater distances.
Illustration of the Drake equation. (Credit : NOIRLab/AURA/NSF/P. Marenfeld)

How long do technological civilizations last? Iranian researchers suggest a ceiling of about 5,000 years

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A mathematical analysis of the Fermi Paradox suggests that if intelligent life is widespread in the galaxy, the fact that we have not detected any signals from it may indicate that most technological civilizations do not survive more than a few thousand years.
Artist's impression of the planet Kepler-168b in a habitable, rocky, potentially habitable zone. Credit: NASA Ames/NASA/JPL–Caltech/Tim Pyle (Caltech)

The nearest extraterrestrial civilization may be 33 light years away

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New study suggests intelligent life is rare for the Milky Way – and if another civilization exists, it is much older than us
In a new study, researchers from Penn State University and NASA's Jet Propulsion Laboratory analyzed human communications in deep space and found that human transmissions are often directed toward our spacecraft near Mars (bottom left), the Sun, and other planets. Because planets like Mars don't completely block the signal, an extraterrestrial intelligence that happens to be along the path of interplanetary communications—when the stars are aligned from its perspective—could detect the "leak." This finding suggests that humans should look for planetary alignments outside the solar system when searching for signs of extraterrestrial communications. Credit: Zaina Sheikh

If aliens are looking for us – this is how they will find us

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The study indicates that if an alien civilization is trying to detect signals from Earth, the highest chance is during an alignment between Earth and Mars, when transmissions are made to spacecraft and rovers on Mars.
Transmitting radio signals into space. Illustration: depositphotos.com

Earth is broadcasting its location to aliens – unintentionally

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New research reveals that civilian and military radar systems emit radio signals strong enough to be detected from hundreds of light years away – and could reveal our existence to intelligent civilizations
Filtering human noise from signals coming from other worlds. Photo: Green Bank Observatory

Filtering radio pollution from Earth in search of extraterrestrial signals

Researchers used machine learning to distinguish between signals from space and signals originating from human activity
A Dyson ball designed to block the sun and use all its energy. Illustration: depositphotos.com

Could black holes be a source of energy for aliens? New research reveals fascinating possibilities

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Scientists propose a new way to search for advanced civilizations: detecting energy signatures of structures around black holes, which may be visible up to 17,000 light-years away
Carl Sagan extends his palms to the universe, an attempt at creating an image using artificial intelligence.

Carl Sagan's scientific legacy goes far beyond the Cosmos series

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From the revolutionary astronomical achievements to the social activism and inspiration for generations of scientists - how Carl Sagan shaped science and our understanding of the universe.
Searching for life in the TRAPPIST1 system. Illustration of the knowledge site using FLEX-1

A new technique enables the discovery of extraterrestrial communication between planets in the TRAPPIST-1 system

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MWA detectors in Western Australia will assist in the search for signs of extraterrestrial technology. Photo: STI Institute

A first-of-its-kind study will scan 2,800 galaxies for extraterrestrial technology

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The SETI Institute, the SETI Research Center in Berkeley, and the International Center for Radio Astronomy Research in Western Australia. The research is the first attempt to search for extraterrestrial technology in galaxies outside our galaxy, focusing on low frequencies
pulsar. Courtesy of Breakthrough Listen

Breakthrough Listen project scanned entire galaxies for signals from advanced intelligent beings

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The team identified 1,519 candidate signals that could not be attributed to radio frequency interference. After algorithmic processing, matching signal properties with known interference, and extensive visual inspection, no convincing evidence of signatures was found
Credit: Breakthrough Listen / Danielle Futselaar

SETI searches for technology signatures: The hunt for extraterrestrial signals at the heart of the Milky Way begins

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Akshay Suresh, a graduate student at Cornell University, is leading an unusual scientific activity - a groundbreaking mission called BLIPSS to detect periodic signals emanating from the center of the Milky Way
extraterrestrials Illustration: depositphotos.com

First Contact: Simulating an Intelligent Extraterrestrial Message to Earth

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A new project called Signal in Space simulates how Earth will respond to a signal from aliens and invites the public to help decode an extraterrestrial message (roughly)
Radio signals from outer space. Illustration: depositphotos.com

Will artificial intelligence detect signals of extraterrestrial technologies?

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To filter out unwanted noise and identify interesting signals, the researchers used a machine learning algorithm called a convolutional neural network (CNN). CNNs are a type of artificial neural network that can identify patterns in data,
Murchison Widefield Array Radio Telescope Photo: GOLDSMITH/MWA COLLABORATION/CURTIN UNIVERSITY

SETI: Australian researchers seek to find intelligent life on planets outside the solar system

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aliens. Illustration: shutterstock

ET called? Again a mistake in the number - a signal from space turned out to be background noise again

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aliens. Illustration: shutterstock

are we alone Redefining the uniqueness of our planet

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Paul Schoch, founder of the SETI League. Archive image.

"The search for extraterrestrials does not require equipment and a budget of tens of millions of dollars"

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A section of the very large array - a concentration of radio telescopes used, among other things, to search for radio signals from aliens. Photo: shutterstock

Will aliens interpret the first message from humanity to them as a cyber attack?

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Earthlings-Aliens Friendship Association. Illustration: shutterstock

Hello, is there anyone out there?

Artist's illustration of a lunar base. Photo: Spencer/Space Tourism Society.

How do you pay for upside down coffee at a restaurant on the moon? PayPal has a plan

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"The Third Day" movie poster Flying saucer over the White House - only in movies.

Search for ET - no evidence yet

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Stephen Hawking at the Hebrew University in Jerusalem, December 2006. Photo: Avi Blizovsky

The voice of the skeptic - the myth of the evil aliens / Michael Shermer

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Berkeley University's Allen Telescope Array. Also used by the SETI project

They stop looking for radio signals from aliens - the SETI telescope array is closed due to lack of budget

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Carboniferous rocks in the Nili region of Mars, which apparently contain evidence of life in the early period of Mars

Carboniferous rocks discovered on Mars may contain evidence of life there 4 billion years ago

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As the sun weakens, cosmic radiation at flight altitude strengthens

Looking for extraterrestrials in infrared

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As the sun weakens, cosmic radiation at flight altitude strengthens

Contact with aliens in less than 20 years?

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As the sun weakens, cosmic radiation at flight altitude strengthens

Is our universe controlled by artificial intelligence?

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As the sun weakens, cosmic radiation at flight altitude strengthens

Hello, is this Bloomfield? Or, how we will communicate with other intelligent life in the universe.

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As the sun weakens, cosmic radiation at flight altitude strengthens

More computers are needed for the oldest and largest grid project

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As the sun weakens, cosmic radiation at flight altitude strengthens

All the answers to the question is there life in space?

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As the sun weakens, cosmic radiation at flight altitude strengthens

How do you make contact with other life forms in space?

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As the sun weakens, cosmic radiation at flight altitude strengthens

listen to I.T

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As the sun weakens, cosmic radiation at flight altitude strengthens

Your computer can discover new planets, a cure for cancer or particles of interstellar dust

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As the sun weakens, cosmic radiation at flight altitude strengthens

A global medical project was launched to eradicate malaria using a grid

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As the sun weakens, cosmic radiation at flight altitude strengthens

Evolution of intelligent life

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As the sun weakens, cosmic radiation at flight altitude strengthens

When will we discover the creatures from space?

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As the sun weakens, cosmic radiation at flight altitude strengthens

Exploring the future - an interview with Arthur Charles Clarke

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As the sun weakens, cosmic radiation at flight altitude strengthens

Seti scientists deny that Seti@home antennas detected an alien signal

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As the sun weakens, cosmic radiation at flight altitude strengthens

Darwin's universe

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As the sun weakens, cosmic radiation at flight altitude strengthens

ET failed to call home; The 150 signals turned out to be a false maximum

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As the sun weakens, cosmic radiation at flight altitude strengthens

The STI workshop will try to formulate how we will tell the aliens about the human race

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As the sun weakens, cosmic radiation at flight altitude strengthens

Radio communication with extraterrestrial intelligence, reality or imagination?

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As the sun weakens, cosmic radiation at flight altitude strengthens

A million years of searching have turned up nothing but according to the Drake formula there is something to look forward to

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As the sun weakens, cosmic radiation at flight altitude strengthens

where is the monolith

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