Following the light of the sun, we left the Old World.

— Inscription on Columbus' caravels

Astronomy

Ultracold clocks could reveal how quantum physics alters time

New Scientist Space - Space Headlines - Mon, 09/29/2025 - 8:00am
The world’s best clocks may be sensitive to an odd mix of quantum and relativistic effects that would stretch time and test the boundaries of physics
Categories: Astronomy

Weaver Ants Form Complex Chains to Pull More Than 100 Times Their Weight

Scientific American.com - Mon, 09/29/2025 - 6:45am

When more humans are added to a team, each member accomplishes less work—but teams of weaver ants do better and better as more join

Categories: Astronomy

Extraordinary pictures show what a common antibiotic does to E. coli

New Scientist Space - Cosmology - Mon, 09/29/2025 - 6:33am
A commonly used class of antibiotics seems to kill bacteria like E. coli by breaking down their tough armour
Categories: Astronomy

Extraordinary pictures show what a common antibiotic does to E. coli

New Scientist Space - Space Headlines - Mon, 09/29/2025 - 6:33am
A commonly used class of antibiotics seems to kill bacteria like E. coli by breaking down their tough armour
Categories: Astronomy

Endangered Sharks Caught in Rare Mating Ritual beneath the Waves

Scientific American.com - Mon, 09/29/2025 - 6:00am

The Food and Drug Administration plans to update the safety label for acetaminophen products, and the strongest storm on Earth this year struck several countries in East and Southeast Asia.

Categories: Astronomy

Taking Tylenol While Pregnant Is Safer Than Untreated Fevers, Doctors Say

Scientific American.com - Sun, 09/28/2025 - 1:00pm

Untreated fevers during pregnancy can cause more harm than taking acetaminophen will

Categories: Astronomy

<p><a href="https://apod.nasa.gov/apod

APOD - Sun, 09/28/2025 - 8:00am

On Saturn, the rings tell you the season.


Categories: Astronomy, NASA

People Are More Likely to Cheat When They Use AI

Scientific American.com - Sun, 09/28/2025 - 6:00am

Participants in a new study were more likely to cheat when delegating to AI—especially if they could encourage machines to break rules without explicitly asking for it

Categories: Astronomy

Two-in-one inhalers slash asthma attacks among young children

New Scientist Space - Space Headlines - Sun, 09/28/2025 - 2:00am
Inhalers that combine relieving breathlessness with preventing it seem to be the most effective option for reducing asthma attacks in young children
Categories: Astronomy

Two-in-one inhalers slash asthma attacks among young children

New Scientist Space - Cosmology - Sun, 09/28/2025 - 2:00am
Inhalers that combine relieving breathlessness with preventing it seem to be the most effective option for reducing asthma attacks in young children
Categories: Astronomy

Lab-Grown Organoids Could Transform Female Reproductive Medicine

Scientific American.com - Sat, 09/27/2025 - 8:00am

Artificial tissues that mimic the placenta, endometrium, ovary and vagina could point to treatments for common conditions such as preeclampsia and endometriosis

Categories: Astronomy

<p><a href="https://apod.nasa.gov/apod

APOD - Sat, 09/27/2025 - 4:00am

Does the Sun set in the same direction every day?


Categories: Astronomy, NASA

An Impact Between Equals Could Solve The "Mercury Problem"

Universe Today - Sat, 09/27/2025 - 2:58am

Mercury's large metallic core is 70% of its mass, which is way more than the other rocky planets. Scientists have wondered if a collision with a much larger body stripped away much of its mantle and crust, and Mercury is only the remnant core of a once much larger planet. New simulations show that's not quite what happened.

Categories: Astronomy

This Rapidly-Growing Black Hole Could Explain The JWST's Puzzling Findings

Universe Today - Sat, 09/27/2025 - 2:58am

NASA's Chandra X-ray space telescope has found a black hole that's growing at an extremely rapid pace. The telescope is seeing the black hole, which has about one billion solar masses, when the Universe was less than one billion years old. Studying its rapid accretion could explain how some black holes become so massive so soon after the Big Bang.

Categories: Astronomy

Defining Life With Constants From Physics

Universe Today - Sat, 09/27/2025 - 2:58am

What is the meaning of life? Even the best of us couldn’t hope to answer that question in a universe today article. But there are those who would try to “constrain” it, at least in terms of physics. A new paper from Pankaj Mehta of Boston University of Jané Kondev of Brandeis that was recently pre-published on arXiv looks at how the fundamental constants of physics might be applied to life as we know it - and even life as we don’t know it yet. Their idea doesn't necessarily give the answer to the ultimate question, but it does tie two seemingly disparate fields nicely together.

Categories: Astronomy

Finding Exomoons Using Their Host Planet's Wobble

Universe Today - Sat, 09/27/2025 - 2:58am

Exoplanets aren’t the only objects floating around other stars - they likely have comets and asteroids as well. Even some of the exoplanets themselves will have “exomoons”, at least according to our current understanding of the physics of planetary formation. However, we have yet to find any of these other objects conclusively, though there has been some hint at the presence of exomoons in the last ten years. A new paper from astronomers at the European Southern Observatory (ESO), recently pre-published on arXiv, suggests a way in which we might be able to finally detect the presence of an exomoon - using a technique that is also commonly used to find exoplanets themselves.

Categories: Astronomy

The Search for Australia's Hidden Impact Crater

Universe Today - Fri, 09/26/2025 - 11:08pm

A team of scientists in south Australia have discovered tiny pieces of glass that tell the story of a catastrophic event that happened 11 million years ago, an asteroid impact so massive it should have left a crater the size of a major city, yet mysteriously, no one has found it. This discovery represents only the sixth known tektite field ever identified on Earth. The glassy fragments, scattered across the landscape are forcing scientists to reconsider what they know about ancient asteroid impacts and the geological features they leave behind.

Categories: Astronomy

Hurricane Humberto and Potential Tropical Storm Imelda Complicate Forecasts

Scientific American.com - Fri, 09/26/2025 - 5:20pm

Hurricane Humberto and a system that may become Tropical Storm Imelda in the coming days are swirling quite close to each other in the western Atlantic Ocean

Categories: Astronomy