Interstellar comet 3I/ATLAS may be 12 billion years old – so its old star system may no longer exist.

3I/ATLAS travels through space in this black and white gif.

The asteroid that recently dominated the headlines, 3I/ATLAS, may be between 10 and 12 billion years old, a new analysis of the isotopic composition of the comet has shown. This so-called “invader” in our planetary system is only the third object reported to enter our cosmic environment from beyond. If these predictions of new comet … Read more

Metabolites “Rewrite” Neurochemicals in Addiction – Neuroscience News

This shows the DNA.

Summary: We have known for a long time that alcohol changes the way the brain works, but new research has discovered a surprising direct mechanism: alcohol does not only affect brain chemistry – its breakdown products (metabolites) directly control genes. The study shows that these epigenetic “rewrites” occur throughout the entire brain after long-term exposure, … Read more

When this new food caddy arrives, here’s how to reduce waste – not just recycle

clipboard with meal plan notes, held by hands in front of open fridge with fresh veg

If you live in England, you may have just got a new food waste caddy. Councils must now collect your separated food waste and turn it into fuel, compost or compost. So you can live comfortably knowing that your provisions for potatoes and stale bread will be put to good use instead of going to … Read more

JWST Finds Supermassive Black Holes in Very Small Necks, Defying All Expectations

Jwst Finds Massive Black Holes In Tiny Dwarf Galaxies, Defying All Expectations

James Webb Telescope (JWST) discovered small galaxies with black holes that are not well understood. These black holes, located in galaxies with masses much smaller than those traditionally associated with supermassive black holes (SMBHs), challenge long-held beliefs about how galaxies and their central black holes evolve. The discovery of these “extreme” black holes pushes the … Read more

For almost 30 years, we were told that the universe would expand forever, but now new data from 2025 and 2026 are bringing the Big Crunch theory back to the table, predicting that everything in existence could eventually be crushed by the big vision of the universe.

A large telescope inside the observatory as scientists study dark energy and the future expansion of the universe.

For more than two decades, textbooks and science fairs have been telling the same story that the universe is not only expanding, but accelerating. Now a new wave of data is quietly shaking up that picture and giving new life to a mysterious ending called the Big Crunch, where everything in the universe finally collapses … Read more

Scientists Have Just Overturned a 300-Year-Old Law of Physics

Yahoo news home

“Hearst Magazines and Yahoo may receive commissions or other income from these links.” Here’s what you’ll learn by reading this story: Today, scientists do not find “laws” but rather perfect theories, they always know that there is more to learn. A new study shows why the centuries-old “laws” need to be changed, as the 300-year-old … Read more

Do multiverses exist? An astrologer explains why it depends on how you define ‘truth’.

Do multiverses exist? An astrologer explains why it depends on how you define 'truth'.

Curious Kids is a series for children of all ages. If you have a question you want an expert to answer, send it to CuriousKidsUS@theconversation.com. Do multiverses exist? If so, what do they look like? How do you get there without wasting time? – Emily, age 9, Pune, Maharashtra, India The concept of multiverse – … Read more

New Research Says The Big Bang May Be Linked To The “Deep Theory Of Gravitation,” Hard Ideas From The Past.

sand storm

Researchers say a new theory to deal with the Big Bang could change the way physicists think about the early history of the universe. A team from the University of Waterloo and the Perimeter Institute for Theoretical Physics has taken a different approach to analyzing the origin of the universe from previous efforts, with a … Read more

Stuart Penkett obituary

Stuart Penkett obituary

Stuart Penkett’s discovery of the chemical processes that cause acid rain changed our understanding of atmospheric pollution and what was needed to deal with it. Penkett, who has died aged 87, and his colleagues at the Atomic Energy Research Establishment (AERE) in Harwell, Berkshire, published a landmark paper in 1979 in the journal Atmospheric Environment, … Read more