3I/ATLAS Is Making Its Closest Approach to Earth Today—Here’s Everything You Need to Know
On Friday, interstellar comet 3I/ATLAS makes its nearest approach to Earth. Here's what you need to know, and how to track the alien visitor.
Astronomy
“Exciting Implications for the Search for Life”: New Analysis of Titan Increases Chances of Finding Extraterrestrial Life
A new analysis of Saturn's moon Titan that reduced the odds of a subsurface liquid ocean has increased the chances of extraterrestrial life.
“The Model That We Started Off With is Wrong”: Astronomers Say These Odd Blue ‘Optical Transients’ Aren’t What We Thought They Were
New research reveals unusual cosmic bursts known as 'luminous fast blue optical transients' aren't what astronomers initially suspected.
Neptune and Uranus, the Solar System’s ‘Ice Giants,’ May Not Be So Icy After All, New Models Reveal
Our fundamental understanding of Neptune and Uranus may be completely wrong, say researchers rethinking our solar system.
“There Are a Couple Suspicious Objects”: Discovery of Star Wars-Style Planet Orbiting Two Suns Could Lead to More Unexpected Finds
Astronomers combing through old image data have found evidence of a Star Wars-style planet orbiting two suns that previous studies had missed.
“This is a Real Gift for Physicists”: A Black Hole Just Twisted Spacetime—and Proved Einstein Right Again
An elusive effect first envisioned by Einstein has been observed by scientists, once again vindicating the famed physicist's Theory of General Relativity.
SETI Institute Tracks ‘Twinkling’ Pulsar Signals to Sharpen Cosmic Clocks and Hunt for Alien Signals
SETI scientists observing a pulsar’s radio pulses over time are redefining how astronomers time pulsars and search for advanced civilizations.
“No One Has Considered These Systems the Way We Did”: The Magnetic Power that Created ‘Impossible’ Black Holes
New black hole research from the Flatiron Institute rethinks their formation under the influence of magnetic fields.
NASA’s James Webb Space Telescope Has Discovered an ‘Impossible’ Atmosphere Around a Magma-Covered World
NASA’s James Webb Space Telescope has detected the best evidence ever recorded for an atmosphere on a rocky exoplanet.
“It Does Not Fit Into Any of Our Existing Models”: The Longest Gamma-Ray Burst Ever Seen is Upending Our Ideas on High-Energy Cosmic Events
The longest gamma-ray burst ever observed has UNC Chapel Hill astronomers questioning the very nature of these cosmic explosions.
“Cosmology as We Know It May Be Broken”: New Confirmation of the Hubble Tension Challenges Existing Models
New measurements by astronomers have strengthened the Hubble tension, involving discrepancies between the expansion rate of the universe.
X-Ray Data Reveals Powerful ‘UFO’ Winds Generated in Record-Breaking Black Hole Event
Record-breaking ultrafast outflow (UFO) winds from a supermassive black hole flung matter across the universe close to the speed of light.
Is TRAPPIST-1e Really Habitable? New Study Suggests This Promising Candidate for Life May Be Something Else Entirely
TRAPPIST-1e may be the long-sought-after habitable, Earth-like exoplanet astronomers have been looking for in the search for ET.
Scientists Trace the Mysterious Origins of These Critical Life-Supporting Elements to the Death of an Ancient Star
Scientists have found an "extreme" solution to the mysterious origins of critical life-supporting elements chlorine and potassium.
James Webb Space Telescope Discovery Reveals the Milky Way Has a Distant Twin That Shouldn’t Exist
New James Webb Space Telescope observations have revealed a galaxy that shouldn’t exist, a complex spiral galaxy named Alaknanda.
A Razor Thin Spinning Filament of Galaxies and Dark Matter Provides New Insights Into Galactic Evolution
A razor-thin cosmic filament is one of the largest rotating structures ever found, with implications for early galaxy formation.
The Oldest Known Eclipse Record is Shedding Light on Early Celestial Mysteries, Revealing the Location of a Misplaced Ancient Chinese City
Using ancient Chinese eclipse records, scientists have calculated the Earth’s variable rotational speed back to the year 709 BCE.
‘Ice Volcanoes’ Are Erupting All Over 3I/ATLAS, as Scientists Say the Alien Visitor “May be a Primitive Carbonaceous Object”
The interstellar comet 3I/ATLAS may be showing signs of active eruptions from ice volcanoes on its surface, according to new analysis of the unusual space object.
“We Used to Think Life Had to Start Completely from Scratch”: New Evidence Shows Biomolecules May Have Origins in Earth’s Atmosphere
New experiments show that biomolecules the form the basis of all life were present in the Earth's atmosphere before the first life existed
Scienstists Reveal Samples from Near-Earth Asteroid Bennu Hold a Rich Collection of Life-Giving Ingredients
New analysis of samples from the near-Earth asteroid Bennu reveals a collection of organic molecules linked to the building blocks of life.
The Hidden Oceans of Saturn and Jupiter’s Icy Moons May Have Shaped Their Surface Features, Study Reveals
New research now shows how icy moons hidden subsurface oceans may have driven their geological development.
Astronomers Uncover the Dramatic Past of a Red Giant Star Orbiting a Hidden Black Hole
Astronomers are revealing the dramatic past of a distant red giant star by analyzing the faint rhythmic pulses hidden in its light.
A Mysterious New “Structure” Has Been Discovered in Our Solar System’s Kuiper Belt
Far beyond Neptune, at the far outer rim of our Solar System, astronomers have spotted what looks like a hidden “structure” or “band” of small worlds.
NASA’s Fermi Gamma-Ray Telescope Detects Possible First Direct Evidence of Dark Matter
NASA’s Fermi Gamma-ray Space Telescope may have detected the first direct evidence for dark matter, according to new research.
Dwarf Galaxies Around Andromeda Are Revealing a Complex Story of Cosmic Death
A new study of M31, also known as Andromeda, explains how our cosmic neighbor kills off smaller nearby galaxies.
James Webb Space Telescope Captures Stunning Images of “Repetitive, Predictable Structures” in a Rare Star System
The James Webb Space Telescope has captured the first-ever image of four dust spirals surrounding the Wolf-Rayet stars in the Apep system.
Astronomers Have Observed the First Coronal Mass Ejection Outside Of Our Solar System, Spelling Bad News for Exoplanet Habitability
For the first time, astronomers have spotted a coronal mass ejection exploding from a star other than our Sun.
“Our Current Models Are Being Put to the Test”: Researchers Say Our Solar System is Moving Impossibly Fast
Our solar system appears to be breaking the cosmic speed limit, casting fresh doubt on the Standard Model of Cosmology.
“A New Window into the Hidden Architecture of Our Galaxy”: Astronomers Discover Lost Stars Concealed Among the ‘Seven Sisters’ of the Pleiades
The “Seven Sisters” of the Pleiades are among the most visible stars from Earth, but new research says the cluster is larger than suspected.
3I/ATLAS Radio Signal Detections Offer New Confirmation of What Many Astronomers Have Been Saying for Months
New radio observations of the interstellar comet 3I/ATLAS leave little question about the object’s natural origin.
“A Top Contender for Extraterrestrial Life”: Subsurface Ocean on Saturn’s Moon Enceladus Likely Stable Enough to Support Life
Temperature readings from Saturn's moon Enceladus suggests its subsurface liquid water ocean may be stable enough for life to evolve.
“A Potential Paradigm Shift in Cosmology”: Scientists Uncover Evidence the Universe’s Expansion is Slowing Down, Not Accelerating
Korean scientists studying Type Ia supernovae have found strong evidence that the universe's expansion is not accelerating, but slowing down.
These Water-Rich Exoplanets Shouldn’t Exist—Now Astronomers Finally Know How They’re So Wet
A new study suggests mysterious water worlds may be manufacturing their own oceans through chemical reactions deep within their interiors.
Scientists Map the Colors of Life to Hunt for Potential Biosignatures on Alien Worlds
In the search for alien life, one Cornell researcher says color may be a telltale sign of biosignatures on far-off exoplanets.
Scientists Develop “Effort.jl” Emulator That Can Simulate the Entire Universe—on Just a Laptop
Scientists have developed a new program, "Effort.jl," that utilizes AI and physics to simulate the universe at a faster rate than ever, enabling scientists to map cosmic structure in minutes.
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.
Halloween Fireballs? Astronomers Warn of Potential Enhanced Risk of Cosmic Impacts and Airbursts in the Coming Decade
Astronomers warn of a small yet likely enhanced risk of damage, injury, or death from exploding swarms of Halloween Fireballs.
New Evidence Reveals Early Dark Energy May Have Had a Surprising Effect on Cosmic Expansion
Very early dark energy (vEDE) may have accelerated the universe’s expansion just 380,000 years after the Big Bang, new research suggests.
Unexpected Earth-Sized Exoplanets Discovered in Binary Star System “Test the Limits of Planet Formation Models”
A trio of newly discovered exoplanets is defying the expectation that binary systems are hostile to planet formation, according to an international team of researchers.
Astronomers Just Spotted an Undiscovered Space Object Hiding in the Sun’s Glare—And It’s Moving Extremely Fast
Hidden by the Sun’s glare, a new space object has been found lurking in our Solar System, and it's one of the fastest-moving of its kind.
Elusive ‘Alfvén Waves’ Have Been Discovered in the Sun’s Corona, Ending Nearly a Century of Searching
Scientists have finally discovered theoretical torsional Alfvén waves within the Sun’s corona, concluding a decades-long search.
“We Made an Exciting Discovery”: Astronomers Spot ‘Super Earth’ in Star’s Habitable Zone Less Than 20 Light Years From Earth
A newly spotted 'super-Earth' orbiting within its star's habitable zone, just 20 light-years from Earth, could host extraterrestrial life.
NASA’s James Webb Space Telescope Has Discovered Evidence of Unexpected Chaos in the Early Universe
New James Webb Space Telescope observations indicate that early galaxies were more chaotic than previous results suggested.
3I/ATLAS is Leaving a Mysterious “Hidden” Trail of Particles in Its Wake—Now Scientists Have a Plan to Intercept It
3I/ATLAS is producing a "hidden" tail of charged particles, and these scientsts have a bold new plan to send spacecraft into it.
This Black Hole Devoured a Star from Within, Causing a Record-Breaking Cosmic Explosion
Astronomers have discovered the longest gamma-ray burst ever recorded, revealing that a black hole literally consumed a star from the inside out over the course of seven hours.
James Webb Space Telescope Discovers Complex ‘Seeds of Life’ Molecules Beyond the Milky Way For the First Time
Scientists using the James Webb Space Telescope have spotted "seeds of life" molecules around a protostar 160,000 light years from Earth.
“What Is the Origin of the Waves?” Scientists Hunt the Source of Mysterious Ultra-Low Frequency Gravitational Signals
Ultra-low frequency nanohertz gravitational waves emanating from pulsars may be revealing the fabric of the universe.
Mysterious Glow at the Center of the Milky Way Galaxy That Has Stumped Scientists for Decades May Have a Dark Explanation
A mysterious glow at the center of the Milky Way may actually be the first evidence for an elusive "dark" phenomenon, new research says.
3I/ATLAS Displays More Anomalies as Latest Data Confirms Strange Object Has “Developed an Anti-Solar Tail”
New observations of 3I/ATLAS have revealed the latest in a growing collection of anomalies the object displays, deepening its mystery.
“This is Truly Extraordinary”: Astronomers Detect “Exceptionally Strong” Radio Signals from Deep Space Linked to the Death of a Star
Scientists have detected a mysterious series of very strong radio signals coming from beyond a distant galaxy, marking an astronomical first.