3I/ATLAS Archives

NASA’s Webb Telescope Spied on Interstellar Object 3I/ATLAS as It Left Our Solar System—What It Spotted “Surprised Researchers”

Micah Hanks·June 22, 2026

Astronomers using NASA’s James Webb Space Telescope have revealed surprising new data about the mysterious interstellar comet 3I/ATLAS.

The SETI Institute Searched For Signs of Technology From 3I/ATLAS—a New Paper Reveals What They Found

Chrissy Newton·June 6, 2026

The SETI Institute says it found no evidence of technosignatures during a comprehensive examination of the mysterious interstellar object 3I/ATLAS.

Strange Water on 3I/ATLAS Hints at the Alien Conditions of Its Birth in a Frigid, Low-Radiation Region

Ryan Whalen·April 24, 2026

New research reveals that the mysterious interstellar visitor 3I/ATLAS comes from a very cold alien environment, new research reveals.

12-Billion-Year-Old Space Invader? James Webb Space Telescope Reveals the Ancient Origins of Interstellar Comet 3I/ATLAS

Micah Hanks·April 1, 2026

3I/ATLAS may be more than the strangest space object astronomers have observed within our solar system—it could also be one of the oldest.

Webb Telescope Makes an Odd Discovery, Mysterious Light Vortices, and Serpent Mound’s Mystery Deepens

Micah Hanks·March 31, 2026

This week, the Webb Telescope is peering at 3I/ATLAS, ligth wave vortices are breaking the universal speed limit, and an iconic American archaeology site's mystery is deepening.

Webb Telescope Detects Unusually High Levels of “Heavy Hydrogen,” a Key Component of Nuclear Fusion Fuel, in 3I/ATLAS

Micah Hanks·March 27, 2026

New data from the James Webb Telescope has identified an unusually high concentration of deuterium in the interstellar comet 3I/ATLAS.

What’s Hidden Inside 3I/ATLAS? Astronomers Reveal Another Unexpected Discovery About Our Latest Interstellar Visitor

Micah Hanks·March 10, 2026

3I/ATLAS, the unusual interstellar comet that continues to fascinate astronomers, appears to be keeping an intoxicating cosmic secret, new research has revealed.

Astronomy in 2025: This Year’s Most Captivating Discoveries in Space and the Cosmos

Micah Hanks·December 24, 2025

Here is a look at just a few of the biggest developments in astronomy that The Debrief has been tracking in 2025.

3I/ATLAS Is Making Its Closest Approach to Earth Today—Here’s Everything You Need to Know

Micah Hanks·December 19, 2025

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.

‘Ice Volcanoes’ Are Erupting All Over 3I/ATLAS, as Scientists Say the Alien Visitor “May be a Primitive Carbonaceous Object”

Micah Hanks·December 3, 2025

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.

NASA Finally Reveals Long-Awaited 3I/ATLAS Images—There’s Still No Sign of Aliens

Micah Hanks·November 20, 2025

This week, NASA finally released long-awaited images of the interstellar object 3I/ATLAS, following weeks of silence during the record-long U.S. government shutdown.

3I/ATLAS Radio Signal Detections Offer New Confirmation of What Many Astronomers Have Been Saying for Months

Micah Hanks·November 11, 2025

New radio observations of the interstellar comet 3I/ATLAS leave little question about the object’s natural origin.

Did 3I/ATLAS Just Show Signs of Technology? Interstellar Object Displays ‘Non-Gravitational Motion’ as it Swings Past the Sun

Micah Hanks·November 1, 2025

A new report offers the latest confirmation of 3I/ATLAS and its interstellar origins, as scientists still debate over its unusual properties.

Warning Network’s Campaign to ‘Target’ 3I/ATLAS Sparks Theories About Secret Planetary Defense Effort

Micah Hanks·October 23, 2025

This week, the International Asteroid Warning Network (IAWN) announced a new campaign that will target 3I/ATLAS.

3I/ATLAS is Leaving a Mysterious “Hidden” Trail of Particles in Its Wake—Now Scientists Have a Plan to Intercept It

Micah Hanks·October 22, 2025

3I/ATLAS is producing a "hidden" tail of charged particles, and these scientsts have a bold new plan to send spacecraft into it.

3I/ATLAS Update: What New Data Reveals About the Most Puzzling Interstellar Object Ever Found

Micah Hanks·October 16, 2025

This week, a series of new astronomical observations have deepened the mystery surrounding the unusual interstellar object 3I/ATLAS.

3I/ATLAS Displays More Anomalies as Latest Data Confirms Strange Object Has “Developed an Anti-Solar Tail”

Micah Hanks·October 16, 2025

New observations of 3I/ATLAS have revealed the latest in a growing collection of anomalies the object displays, deepening its mystery.

3I/ATLAS is Displaying Surprising New Activity That Scientists Liken to “a Note from Another Planetary System”

MJ Banias·October 10, 2025

Auburn University physicists have detected water activity in comet 3I/ATLAS, marking the first time hydroxyl gas, water's chemical signature, has been observed from an interstellar visitor.

Newest 3I/ATLAS Images Reveal Mysterious Interstellar Visitor in “Challenging Observation” by ESA Spacecraft

Micah Hanks·October 8, 2025

Highly anticipated new images of the interstellar comet 3I/ATLAS as it made its nearest pass to the planet Mars last week have been released by the European Space Agency.

A ‘Chilling’ Discovery on the Moon, Odd New Images of 3I/ATLAS, and the Physics of Finding Concealed Objects

Micah Hanks·October 7, 2025

This week, new lunar rock samples from the Moon’s far side reveal a 'chilling' discovery, and odd new images of the interstellar comet 3I/ATLAS have surfaced.

Latest NASA Images of 3I/ATLAS From Recent Mars Flyby Stunned Social Media—Here’s Why It Looks So Strange

Micah Hanks·October 6, 2025

New NASA images of the interstellar object 3I/ATLAS during its closest approach to Mars late last week have erupted in controversy online.

3I/ATLAS is Captured in New Images as Mysterious Object Cruises Past Mars—What Does the Latest Data Reveal?

Micah Hanks·October 3, 2025

3I/ATLAS is making its closest approach to Mars today, which could offer a chance to capture the clearest images yet of the unusual comet.

Newest 3I/ATLAS Study Reveals an “Extremely Puzzling” Discovery: Why Does It Have So Much Metal?

Micah Hanks·October 1, 2025

New questions emerge as an “extremely puzzling" discovery challenges our current ideas about the interstellar object 3I/ATLAS.

Mystery Drone Incursions, a 3,000-Year-Old ‘Accident’, and Concerns Over Conflict with AI

Micah Hanks·September 30, 2025

This week, unidentified drones disrupting airports and military sites across Europe have sparked fresh fears of “hybrid warfare," and much more.

Unusual New 3I/ATLAS Discovery Suggests the Interstellar Comet is “Anomalously Massive”

Micah Hanks·September 27, 2025

The mysterious comet 3I/ATLAS is "anomalously massive" compared to past interstellar objects observed in our solar system, a new study suggests.

Interstellar Comet 3I/ATLAS is Making Its Way Closer to Earth—And New Research Suggests It Probably Isn’t Alone

Micah Hanks·September 25, 2025

Scientists say 3I/ATLAS, one of the rarest comets ever seen, likely isn’t alone and that more interstellar objects may soon be on the way.

Comet 3I/ATLAS “Grows” a New Feature, Odd Structures Over Saturn, and a Site That May Predate Göbekli Tepe

Micah Hanks·September 23, 2025

This week in news from The Debrief, new images of the interstellar object 3I/ATLAS show it has a surprising new feature, and much more.

NASA Official Issues Statement on 3I/ATLAS as Images Reveal the Interstellar Object Has ‘Grown’ a Striking New Feature

Micah Hanks·September 18, 2025

Astronomers have obtained new images of the mysterious interstellar object 3I/ATLAS that reveal a new feature: the fastest comet ever observed has now grown a tail.

Interstellar Objects Like 3I/ATLAS Could be “Ready-Made Seeds” For Planet Formation

Ryan Whalen·September 12, 2025

As 3I/ATLAS is presently fascinating space enthusiasts, researchers say that such interstellar objects may act as planetary seeds.

The More Astronomers Watch Interstellar Comet 3I/ATLAS, the Weirder It Gets

Tim McMillan·September 6, 2025

When NASA’s ATLAS survey first spotted the interstellar comet 3I/ATLAS in July 2025, astronomers recognized it as a...

3I/ATLAS is Now Headed Toward Mars, as Mystery Surrounding Interstellar Visitor Grows

Micah Hanks·September 4, 2025

This week, anticipation builds as astronomers await what the closest approach of the interstellar comet 3I/ATLAS might reveal.

hypothetical interstellar object technosignature

Could Alien Technosignatures Be Detected from Interstellar Objects Like 3I/ATLAS? These Astronomers Say It’s Possible.

Micah Hanks·September 1, 2025

A new study says interstellar objects entering our solar system could offer scientists a chance to search for signs of alien technology.

3I/ATLAS Was Just Spotted by the James Webb Telescope, Confirming an Odd New Discovery About the Strange Interstellar Comet

Micah Hanks·August 26, 2025

An unusual interstellar visitor speeding through our solar system was recently spotted by the powerful eye of NASA’s James Webb Space Telescope (JWST).

3I/ATLAS