The mouse on the left is a chimeric with dark eyes and patches of black fur, a result of stem cells derived from a choanoflagellate Sox gene. The wildtype mouse on the right has red eyes and all whit… [+4975 chars]

New research unveils the evolutionary origins of stem cells through a groundbreaking experiment that successfully created a mouse using ancient genetic tools. Published in Nature Communications, an international team of researchers has achieved a groundbreaki…

SciTechDaily

Scientists Create “Extraordinary” Mouse Using Gene Older Than Animal Life Itself - SciTechDaily

The International Space Station (ISS) was repositioned on Tuesday, November 19, to move it well out of the way of approaching space debris, NASA reported.
Station operators fired the thrusters on th… [+1691 chars]

The space station had to undergo another repositioning maneuver to move it out of the way of approaching space debris, NASA announced.

Digital Trends

The space station just had to pull a maneuver to avoid space debris - Digital Trends

NEW YORK (AP) Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they thought.
Astronomers know that the universe is being pushed a… [+3571 chars]

Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they thought. Astronomers know the universe is expanding at an accelerating rate and they have long thought that a constant force called dark…

Associated Press

The dark energy pushing our universe apart may not be what it seems, scientists say - The Associated Press

Coal ashthe chalky remnants of coal that has been burned for fuelhas been piling up across the United States for decades. But new research led by The University of Texas at Austin has found that the … [+5773 chars]

Coal ash—the chalky remnants of coal that has been burned for fuel—has been piling up across the United States for decades. But new research led by The University of Texas at Austin has found that the national coal ash supply contains enough rare earth elemen…

Phys.Org

Enormous cache of rare earth elements hidden inside coal ash waste, study suggests - Phys.org

Summary: Researchers trained computer models to predict everyday events, revealing that responding to uncertainty, rather than just prediction errors, improved understanding. This challenges the idea… [+8051 chars]

Researchers trained computer models to predict everyday events, revealing that responding to uncertainty, rather than just prediction errors, improved understanding.

Neurosciencenews.com

Brain Models Reveal How We Process Life’s Small Surprises - Neuroscience News

Could we have already found life on Marsand accidentally destroyed it in the process? A jaw-dropping theory from a leading scientist suggests that NASAs search for extraterrestrial life may have back… [+2250 chars]

Could NASA's Viking missions have wiped out life on Mars before we even knew it existed? A startling theory suggests that our search for Martian life may have drowned it in the process.

The Daily Galaxy --Great Discoveries Channel

Life on Mars Found—Then Killed? Scientist Warns of Fatal NASA Error - The Daily Galaxy --Great Discoveries Channel

Fast radio bursts are linked to massive, metal-rich galaxies, hinting at their origins in magnetars formed from stellar mergers.
Researchers have linked the origins of fast radio bursts to magnetars… [+6905 chars]

Researchers have linked the origins of fast radio bursts to magnetars, highly magnetized neutron stars, which often arise from the mergers of massive stars in star-forming galaxies. By utilizing the Deep Synoptic Array-110, they've localized 70 FRBs, discover…

Mystery Solved: Magnetars in Massive Galaxies Behind Cosmic Radio Flashes - SciTechDaily

NASA, along with its industry and international partners, is preparing for sustained exploration of the lunar surface with the Artemis campaign to advance science and discovery for the benefit of all… [+3182 chars]

NASA, along with its industry and international partners, is preparing for sustained exploration of the lunar surface with the Artemis campaign to advance

NASA

NASA Plans to Assign Missions for Two Future Artemis Cargo Landers - NASA

Summary: A new study suggests that individual cells may exhibit learning-like behaviors, previously thought exclusive to organisms with nervous systems. Researchers used computational modeling to sho… [+8884 chars]

A new study suggests that individual cells may exhibit learning-like behaviors, previously thought exclusive to organisms with nervous systems.

Single Cells Exhibit Learning Behaviors - Neuroscience News

The SpaceX Starship sits on the launch pad ahead of its sixth flight test from Starbase in Boca Chica, Texas, on November 17, 2024. 
Chandan Khanna/AFP via Getty Images
South Texans have spoken out… [+4337 chars]

Researchers at Brigham Young University found that one Starship launch produces loud noises that could cause glass to break and other damage.

Chron.com

Study: SpaceX's Starship could cause structural damage in Texas - Chron

The frozen cub not only provides the first look at what a saber-toothed cat looked like in real life, Reynolds notes, but also represents a life stage that paleontologists know less about, as most fo… [+2096 chars]

This remarkably well-preserved cub could help scientists answer questions about sabertooth anatomy, hunting, and even coat color.

National Geographic

The world’s first saber-toothed cat mummy has been found in Siberia - National Geographic

×Hello! In order to leave a comment, you need to be a current kottke.org member. If you'd like to sign up for a membership to support the site and join the conversation, you can explore your options … [+394 chars]

So we all know the color purple has always been associated with royalty because the dye used to make it was extremely limited beca

kottke.org

Purple Isn’t Real - kottke.org

Syracuse, N.Y. A man who drove at a high speed through a red light in Clay last month, colliding with another car, killing himself and another person, suffered a medical episode prior to the crash, t… [+1115 chars]

Autopsy reveals the driver suffered extensive heart disease, troopers said.

syracuse.com

Driver who caused horrific fatal crash in Clay suffered a medical episode, troopers say - syracuse.com

For the first time, researchers have used data from the James Webb Space Telescope
 (JWST) to uncover an example of a previously hypothetical phenomenon known as an "Einstein zig-zag" — where light … [+5622 chars]

A new JWST study has revealed the true origins of a luminous quasar that has been duplicated six times as its light "zig-zags" through space-time via a phenomenon first predicted by Albert Einstein. The unusual light show could help tackle one of cosmology's …

Live Science

James Webb telescope uncovers 1st-ever 'Einstein zig-zag' hiding in plain sight — and it could help save cosmology - Livescience.com

Unlike kids in the United States, hunter-gatherer children in the Congo Basin have often learned how to hunt, identify edible plants and care for babies by the tender age of six or seven.
This rapid… [+4860 chars]

Unlike kids in the United States, hunter-gatherer children in the Congo Basin have often learned how to hunt, identify edible plants and care for babies by the tender age of six or seven.

Hunter-gatherer study helps explain how children have learned for 99% of human history - Phys.org

One of the most reliable meteor showers to light up our night sky each year begins tonight.
The annual Geminid meteor shower runs from Nov. 19 through Dec. 24, with the peak coming overnight on Dec.… [+4148 chars]

The Geminids are regarded to be one of the most reliable meteor showers each year.

Space.com

Geminid meteor shower begins tonight. Here's what to expect from one of the best meteor showers of the year - Space.com

A consortium of companies just completed its initial foray into an 11-year project that could put the first nuclear-powered space tug into space. The project is called RocketRoll, and it paves the wa… [+4452 chars]

Space agencies and companies are pinning their hopes for spaceflight's future on nuclear electric propulsion.

Gizmodo.com

New Roadmap Sets the Stage for Nuclear-Powered Spacecraft by the 2030s - Gizmodo

Go to any country where you don't speak the language, and you will obviously have some trouble communicating. You may have a little help, with languages sharing common roots and similar words, but wi… [+3304 chars]

IFLScience

The Most Universally Understood Word In The World Appears In So Many Languages - IFLScience

New research from the University of Birmingham explores the nature of photons — individual particles of light — in unprecedented detail.
Ben Yuen &amp; Angela Demetriadou define the precise shape of… [+2642 chars]

New research from the University of Birmingham explores the nature of photons -- individual particles of light -- in unprecedented detail.

Sci.news

Physicists Shed Light on Precise Shape of Single Photon - Sci.News

A veteran NASA astronaut caught SpaceX satellites in action from the space station.
NASA astronaut Don Pettit snapped shots of some SpaceX Starlink satellites from the International Space Station (I… [+2262 chars]

"Starlink satellites look like a miniature version of the monolith from '2001: A Space Odyssey.' "