Image of 3I/ATLAS on November 14, 2025. (Credit: Rolando Ligustri)
Below is the transcript of a live Q&amp;A that I had this evening about the interstellar object 3I/ATLAS. The video is available he… [+33657 chars]

Below is the transcript of a live Q&A that I had this evening about the interstellar object 3I/ATLAS. The video is available here.

Medium

Transcript of a Q&A About 3I/ATLAS - Avi Loeb – Medium

An expanding universe complicates this picture just a little bit, because the universe absolutely refuses to be straightforward. Objects are still emitting light, and that light takes time to travel … [+3449 chars]

An expanding universe complicates this picture just a little bit, because the universe absolutely refuses to be straightforward.

Universe Today

Yes, the Universe Can Expand Faster Than Light - Universe Today

Using NASA's Imaging X-ray Polarimetry Explorer (IXPE) spacecraft, astronomers have obtained their first view of the inner region around a dead white dwarf star that is vampirically feeding on a stel… [+6841 chars]

"If you were able to stand somewhat close to the white dwarf's pole, you would see a column of gas stretching 2,000 miles into the sky, and then fanning outward."

Space.com

Scientists get 1st good look at a 'vampire star' feeding on its victim - Space

Astronauts orbiting Earth recently photographed not one but two comets while an aurora show danced below them.
The International Space Station
 (ISS) Expedition 73 crew took several pictures of com… [+4381 chars]

"That moment feels as enjoyable as heading out on a date."

'Like a mermaid swimming through a sea of auroras': ISS astronauts photograph 2 comets dancing above the northern lights - Space

At the universe's grandest scales, galaxy clusters collide in slow-motion cataclysms, leaving behind immense, ghostly arcs — vast ribbons of diffuse radio emissions that can stretch across millions o… [+4655 chars]

New multiscale simulations help crack long-standing mysteries behind the enormous radio arcs generated when galaxy clusters collide.

Astronomers finally explain the strange physics of ghostly 'radio relics' in space - Space

When designing membranes that separate industrial gases, scientists often incorporate structures that attract the gas they want to obtain. This attraction can enhance the membrane's permeability, and… [+2911 chars]

When designing membranes that separate industrial gases, scientists often incorporate structures that attract the gas they want to obtain. This attraction can enhance the membrane's permeability, and help isolate the desired gas more efficiently.

Phys.Org

New membrane sets record for separating hydrogen from CO₂ - Phys.org

A vast region of our solar system, called the Kuiper belt, stretches from the orbit of Neptune out to 50 or so astronomical units (AU), where an AU is the distance between Earth and the sun. This reg… [+4490 chars]

A vast region of our solar system, called the Kuiper belt, stretches from the orbit of Neptune out to 50 or so astronomical units (AU), where an AU is the distance between Earth and the sun. This region consists mostly of icy objects and small rocky bodies, l…

Potentially distinct structure in Kuiper belt discovered with help of clustering algorithm - Phys.org

Celebrated photographer and veteran astronaut Don Pettit does a wide range of science experiments when he’s in space, often documenting them with his Nikon cameras. However, sometimes, his camera its… [+2153 chars]

PetaPixel

This Floating Camera in Space Demonstrates the ‘Dzhanibekov Effect’ - PetaPixel

Ancient Mars boasted abundant water, but the cold and dry conditions of today make liquid water on the Red Planet seem far less probable. However, the Mars Advanced Radar for Subsurface and Ionospher… [+2774 chars]

Ancient Mars boasted abundant water, but the cold and dry conditions of today make liquid water on the Red Planet seem far less probable. However, the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) detected strong radar reflections from a…

Maybe that's not liquid water on Mars after all - Phys.org

A rare and mesmerizing comet event in our solar system has captured the attention of astronomers and sky-watchers alike. First spotted in May 2025, C/2025 K1 (ATLAS) comes from the Oort Cloud, the di… [+3749 chars]

Watch the incredible fragmentation of the comet as it breaks into three glowing chunks during its pass near the Sun.

The Daily Galaxy --Great Discoveries Channel

This Comet Just Shattered Into Three Pieces, and It’s Being Captured on Camera - The Daily Galaxy

One of the strangest mysteries about our Earth is the presence of two dense, giant blobs inexplicably clustered above the planet's core.
Now, new models might reveal where they have come from, and i… [+4759 chars]

One of the strangest mysteries about our Earth is the presence of two dense, giant blobs inexplicably clustered above the planet's core.

ScienceAlert

Two Strange Giant 'Blobs' Deep Inside Earth May Finally Be Explained - ScienceAlert

Biomedical researchers at Texas A&amp;M University may have discovered a way to stop or even reverse the decline of cellular energy productiona finding that could have revolutionary effects across me… [+5324 chars]

Biomedical researchers at Texas A&amp;M University may have discovered a way to stop or even reverse the decline of cellular energy production—a finding that could have revolutionary effects across medicine.

Nanoflowers rejuvenate old and damaged human cells by replacing their mitochondria - Phys.org

AMSTERDAM Kissing did not begin with star-crossed human lovers but with the primate ancestors of great apes around 20 million years ago, according to a study published on Wednesday.
Researchers from… [+1778 chars]

Kissing did not begin with star-crossed human lovers but with the primate ancestors of great apes around 20 million years ago, according to a study published on Wednesday.

KSL.com

First kiss was 20 million years ago by early primates, scientists say - KSL.com

Skywatching can be breathtaking, but what if you want to photograph the night sky's stunning sights? That's where this Dwarflab Dwarf 3 smart telescope comes in. It's a brilliant telescope at full pr… [+3232 chars]

Capture gorgeous pics of the night sky with 10% off this Dwarflab Dwarf 3 smart telescope.

Capture the beauty of the cosmos for under $500 with this super-portable smart telescope Black Friday deal - Space

For experimental physicists, the latest measurement of the muon is the best of times. For theorists there's still work to do.
Colliding 300 billion muons over four years at the Fermi National Accele… [+7743 chars]

For experimental physicists, the latest measurement of the muon is the best of times. For theorists there's still work to do.

Final experimental result for the muon still challenges theorists - Phys.org

November marks 25 years of human presence aboard the International Space Station, a testament to international collaboration and human ingenuity. Since the first crew arrived on Nov. 2, 2000, NASA an… [+9185 chars]

November marks 25 years of human presence aboard the International Space Station, a testament to international collaboration and human ingenuity. Since the

NASA

25 Years of Scientific Discovery Aboard International Space Station - NASA (.gov)

A stealth solar storm hit Earth on Nov. 20. It arrived without warning and may have contributed to auroras visible at mid latitudes.
This event didn't trigger a geomagnetic storm; however, such sola… [+3870 chars]

The quiet arrival offers another indication that the sun is moving into the declining phase of its 11-year cycle.

Earth just got hit by a stealth solar storm no one saw coming - Space

Heres what youll learn when you read this story:
<ul><li>Much about interstellar objects still eludes us, but researchers figured out what it would take for a hypothetical space rock to collide with… [+5217 chars]

Potential impactors are most likely to have low velocities and the highest likelihood of hitting Earth during the winter.

Popular Mechanics

Scientists Found the Most Likely Spot on Earth to Get Hit by a Meteor - Yahoo News Canada

People over on Reddit are once again (see also: why we can't power trucks with a big magnet) asking the big questions: is it more energy efficient to walk around on giant stilts?In a post to the "the… [+4039 chars]

People on Reddit are arguing over whether it's more efficient to walk around on stilts. A study has the answer.

IFLScience

The Latest Internet Debate: Is It More Efficient To Walk Around On Massive Stilts? - IFLScience

NASA has reached one of its key steps on the road to returning humans to the moon, as NASA's Exploration Ground Systems team successfully lifted and integrated
 the Orion spacecraft atop the Space L… [+2485 chars]

The Orion crew module gets stacked onto the Space Launch System in preparation for the upcoming Artemis 2 mission in early 2026.