The SETI Institute Searched For Signs of Technology From 3I/ATLAS—a New Paper Reveals What They Found
The SETI Institute says it found no evidence of technosignatures during a comprehensive examination of the mysterious interstellar object 3I/ATLAS.
Avi Loeb
The Fastest-Known Star Near the Milky Way’s Black Hole Has Been Spotted—Now It Could Help Test Einstein’s Theory of Gravity
Astronomers have discovered one of the most extreme stellar orbits ever observed, and now it could help provide a crucial test for Einstein's theory of gravity.
Why Did Life Emerge Around a Sun-Like Star at This Moment in Cosmic History? New Research May Provide an Answer
New research suggests that middle-aged stars like the Sun may offer the most stable environments for complex life to emerge.
Forever Twilight? Satellite Mirrors Could Create Artificial Daylight From Orbit, Impeding Astronomical Observations
A new proposed satellite constellation could turn the night sky into permanent twilight, Harvard professor Avi Loeb warns.
Did 3I/ATLAS Just Show Signs of Technology? Interstellar Object Displays ‘Non-Gravitational Motion’ as it Swings Past the Sun
A new report offers the latest confirmation of 3I/ATLAS and its interstellar origins, as scientists still debate over its unusual properties.
Latest NASA Images of 3I/ATLAS From Recent Mars Flyby Stunned Social Media—Here’s Why It Looks So Strange
New NASA images of the interstellar object 3I/ATLAS during its closest approach to Mars late last week have erupted in controversy online.
Unusual New 3I/ATLAS Discovery Suggests the Interstellar Comet is “Anomalously Massive”
The mysterious comet 3I/ATLAS is "anomalously massive" compared to past interstellar objects observed in our solar system, a new study suggests.
“Dark Matter Halos”: Harvard Researchers Propose New Explanation for Ghostly “Little Red Dots” in Deep Space
Harvard astronomers are proposing a new theory about the mysterious “little red dots” first spied by the James Webb Space Telescope: Dark Matter Halos
3I/ATLAS, the Latest Interstellar Visitor to Make Its Way to Our Solar System, is Challenging Cosmic Norms
The interstellar object 3I/ATLAS has sparked debate among astronomers since its discovery, and some are exploring whether it could be more unusual than the standard comet.
Gravitational-Wave Rockets: Could Black Hole Mergers Power Space Travel?
Harvard astronomer Avi Loeb discusses the hypothetical use of highly energetic events as a way to produce "gravitational-wave rockets."
Dark Energy’s Early Universe Behavior Was More Exotic Than Expected, New DESI Data Suggest
Exotic properties suggested by recent DESI collaboration data are more likely to apply to dark energy than dark matter, argues Harvard astronomer Avi Loeb.
Could the Hidden Answer to Fermi’s Paradox Be Stealth AI Probes?
Where Is everybody? The answer to Fermi's famous paradox may be lurking closer than we expected... and it could involve stealth AI probes.
Forget Radio Telescopes—Aliens Could Be Using Gravitational Waves to Communicate
Can scientists build a detector of near-Earth objects that would sense gravitational waves produced by any "dark" objects passing nearby?
High-Energy Neutrinos May Hint at New Physics—or New Civilizations
Harvard astronomer Avi Loeb discusses how scientists trace the cosmic journey of high-energy neutrinos from the Big Bang to the ocean floor.
Frozen Worlds, Hidden Clues: Why We Should Search for Technosignatures on Non-Habitable Planets
Astronomers should search for technosignatures on planets that are not conducive to life. Harvard astronomer Avi Loeb explains why.
The Dark Age of Science
This week we are joined by Harvard astronomer Avi Loeb, who discusses the "dark age" of modern science and provides an update on The Galileo Project.
Primordial Black Holes: Could Dark Matter Hold a Deadly Secret?
Is it possible that dark matter, which makes up 85% of the cosmic matter budget, is simply a collection of primordial black holes?
Interstellar Objects: Oumuamua, Borisov, and the Case for Studying Visitors from the Stars
New research suggests that interstellar objects like ‘Oumuamua and Borisov arrive near Earth far more frequently than previously thought.
New Data Increases Chances of Asteroid 2024 YR4 Collision With Earth in 2032. Should We Be Worried?
NASA has just increased the likelihood that the asteroid 2024 YR4 will hit the Earth on December 22, 2032, to 3.1%.
Do Faster-than-Light Particles Exist? Tachyons, Black Holes, and the Limits of Faster-Than-Light Physics
Are there particles that can move faster than light? Harvard astronomer Avi Loeb explores this question and the mysterious role of hypothetical particles known as tachyons.
Where Should We Search for Extraterrestrial Life?
In the search for extraterrestrial life, our best success could come from searching nearer to home than many astronomers would have guessed.
NASA’s Dragonfly Mission Set to Reveal Clues to the Mysteries of Saturn’s Moon Titan
What will NASA's forthcoming Dragonfly mission reveal about the prebiotic chemistry of Saturn's moon Titan?
Experimental Quantum Gravity: Bridging the Gap Between Quantum Mechanics and General Relativity
Avi Loeb explores how experimental quantum gravity approaches may one day help to connect the dots between quantum mechanics and general relativity.
Life in the ‘Big Crunch’: What If the Velocities of All Particles in the Universe Suddenly Reversed?
What would happen if the velocities of all particles in the Universe underwent what physicists call 'Big Crunch'? Avi Loeb explores in this Thanksgiving installment of 'Our Cosmic Neighborhood.'
Did Earth Once Have Saturn-Like Rings? Scientists Say Ring Theory Could Explain a Mysterious Ancient Event
New research reveals Earth likely had Saturn-like rings 466 million years ago. Now scientists say this could point to evidence of an ancient unexplained climate event.
Neutrinos Can’t Travel Faster Than Light. Here’s What That Means for Black Holes
Faster-than-light neutrinos would be able to escape from the spacetime prisons of black holes. Harvard astronomer Avi Loeb explores the cosmic consequences.
Galileo Project Releases Commissioning Data on Half a Million Aerial Objects: Are Any of Them UAP?
The Galileo Project has released the commissioning data from its first Observatory at Harvard University in a new scientific paper.
Earth-like Planet Discovery Near Distant White Dwarf Offers Clues to Earth’s Future
The discovery of an Earth-mass planet around a white dwarf based on gravitational microlensing could offer clues to the future of Earth and our Sun.
Is Dark Matter Made of Primordial Black Holes?
New research is placing dynamical constraints on primordial black holes (PBHs) as a potential dark matter candidate.
Interstellar Sun-Divers: Probing the Sun’s Corona for Exotic Artifacts
NASA's Parker Solar Probe and other space observatories could be used to study interstellar "Sun-divers." What else could they reveal?
Unraveling ‘Oumuamua’s Anomalous Acceleration: Could This Interstellar Object Have Been Manufactured?
Harvard astronomer Avi Loeb revisits the argument for the interstellar object 'Oumuamua potentially being technologically manufactured.
Beyond the Horizon: How the Rubin Observatory Will Transform Our Understanding of the Cosmos
The Rubin Observatory will revolutionize our understanding of the cosmos by capturing unprecedented data on interstellar objects, potentially uncovering evidence of extraterrestrial technology.
Can Black Holes Be Made from Light? Scientists Say No, but Gravity Suggests Otherwise.
Can a black hole be made from light? A recent paper says no, but there was a crucial factor omitted from their calculations.
Source of the Moon’s Mysterious Atmosphere Revealed in New Analysis of Apollo-era Samples
What is the source of the lunar atmosphere? A new paper suggests the primary source of fresh atoms and molecules in the lunar atmosphere.
‘Oumuamua Was Younger Than We Thought, New Findings Suggest. Here’s Why That Matters.
Was the mysterious interstellar object 'Oumuamua younger than we thought? New findings suggest it was, raising new questions about its possible origins.
How Rare Are We? Hubris Inhibits the Hunt for Intelligent Life in the Cosmos
Harvard Astronomer Avi Loeb argues how humanity's belief in its uniqueness hinders the search for extraterrestrial intelligence.
Could AI Avatars Become 21st-Century Tombstones?
Rather than staring at a tombstone in a graveyard, what if one could engage in fresh conversations with AI avatars?
Will Contact With Non-Human Intelligence Involve Aliens or AI?
Distinctions between AI and human intelligence might offer a first taste of what we may one day encounter with the discovery of ET technology.
The Fate of Voyager: Where Will NASA’s Iconic Space Probe Be in a Billion Years?
Where in the universe will NASA's iconic Voyager 1 spacecraft be in one billion years? Here's what science has to say.
Will ET or AI Represent Our First Encounter with Superhuman Intelligence?
Astronomer Avi Loeb argues that humans need to make sure that we will not be on the “menu” of either ET or AI.
Do Dyson Spheres Exist? Here’s Another Way We Could Find Evidence of One.
If Dyson spheres were built around stars and eventually break over time, we might find pieces of broken ones in interstellar space.
Complexity Nurtures Intelligence: A Complex Reality Shaped by Gravity, Life, and AI
Increasing complexity could provide insights into future technological advancements and the potential for encountering extraterrestrial intelligence.
Mapping Cosmic Hydrogen: From the Big Bang to Cosmic Reionization
Harvard astronomer Avi Loeb discusses the reionization of the Universe following the Big Bang, and methods of mapping cosmic hydrogen.
When Did Life As We Know It Begin in the Universe?
Could life in our universe have its origins with the explosions of the first massive stars, and the enrichment of their environments with heavy elements?
Tidal Disruption Events: When Suns Moving at Light Speed Around a Black Hole Collide
What are tidal disruption events? Try imagining the sun moving close to the speed of light and colliding with another sun as they move around a black hole.
Coincidences of Our Sun and Moon: Are Earthlings Exceptionally Lucky?
Was the Moon-Sun tidal coincidence on Earth important for allowing complex and intelligent life?
Communication and the Cosmos: The Power of Language in Advancing Civilizations
Humans evolved from chimpanzees and reached the Moon by developing a language. But why is communication so advantageous for the evolution of a species?
The Cosmic Race Between Stars and Black Holes
Supermassive black holes and stars initially competed for gas in the early universe, influencing the likelihood of life and the cosmic balance of energy.
Detecting the Undetectable: Could Future Technology Help Us Locate “Stealth Vehicles” Piloted by Aliens?
With future advances in gravitational-wave detectors, it might be possible to detect gravitationally stealth vehicles developed by aliens.
Intelligence: The Path Toward Exponential Growth
What is the mark of a genius? The ability to reach a solution through an unforeseen shortcut instead of a random walk or an elaborate effort.