Science

The psychedelic DMT has been linked to improved mental health outcomes before, but now, scientists have shown it reduces depression symptoms more than a placebo when given alongside therapeutic support

The big bang wasn’t the start of everything, but it has been impossible to see what came before. Now a new kind of cosmology is lifting the veil on the beginning of time

Scientists have developed a new way to read the hidden states of Majorana qubits, which store information in paired quantum modes that resist noise. The results confirm their protected nature and show millisecond scale coherence, bringing robust quantum computers closer to reality.

Scientists have developed a new way to read the hidden states of Majorana qubits, which store information in paired quantum modes that resist noise. The results confirm their protected nature and show millisecond scale coherence, bringing robust quantum computers closer to reality.

Dark energy is one of those cosmological features that we are still learning about. While we can’t see it directly, we can most famously observe its effects on the universe - primarily how it is causing the expansion of the universe to speed up. But recently, physicists have begun to question even that narrative, pointing to results that show the expansion isn’t happening at the same rate our math would have predicted. In essence, dark energy might be changing over time, and that would have a huge impact on the universe’s expansion and cosmological physics in general. A new paper available in pre-print on arXiv from Dr. Slava Turyshev, who is also famously the most vocal advocate of the Solar Gravitational Lens mission, explores an alternative possibility that our data is actually just messy from inaccuracies in how we measure particular cosmological features - like supernovae.

Biologists have debated the reason why Homo sapiens evolved a prominent lower jaw, but this unique feature may actually be a by-product of other traits shaped by natural selection

For the first time, researchers have shown that self-assembled phosphorus chains can host genuinely one-dimensional electron behavior. Using advanced imaging and spectroscopy techniques, they separated the signals from chains aligned in different directions to reveal their true nature. The findings suggest that squeezing the chains closer together could trigger a dramatic shift from semiconductor to metal. That means simply adjusting density could unlock entirely new electronic states.

For the first time, researchers have shown that self-assembled phosphorus chains can host genuinely one-dimensional electron behavior. Using advanced imaging and spectroscopy techniques, they separated the signals from chains aligned in different directions to reveal their true nature. The findings suggest that squeezing the chains closer together could trigger a dramatic shift from semiconductor to metal. That means simply adjusting density could unlock entirely new electronic states.

We are used to heat flowing from hot objects to cool ones, and never the other way round, but now researchers have found it is possible to pull off this trick in the strange realm of quantum mechanics

Claiming that an inflammatory response to injury is inherently therapeutic is a massive leap of faith.

The post The Red Marks of Pseudo-Medicine: Gua Sha first appeared on Science-Based Medicine.

New data from major dark-energy observatories suggest the universe may not expand forever after all. A Cornell physicist calculates that the cosmos is heading toward a dramatic reversal: after reaching its maximum size in about 11 billion years, it could begin collapsing, ultimately ending in a “big crunch” roughly 20 billion years from now.

New data from major dark-energy observatories suggest the universe may not expand forever after all. A Cornell physicist calculates that the cosmos is heading toward a dramatic reversal: after reaching its maximum size in about 11 billion years, it could begin collapsing, ultimately ending in a “big crunch” roughly 20 billion years from now.

The shape of the cosmos depends on a balance of two competing forces: the pull of gravity and the expansion driven by dark energy. Columnist Leah Crane explores what observations tell us about how much universe is out there and whether it’s shaped like a sheet, a saddle or something else entirely

The smell of rotten eggs has solved one of exoplanet science's most persistent mysteries. Astronomers using the James Webb Space Telescope have detected hydrogen sulfide gas in the atmospheres of four massive Jupiter like planets orbiting the star HR 8799, marking the first time this molecule has been identified beyond our Solar System. The discovery settles a long standing debate about whether these enormous worlds are truly planets or failed stars called brown dwarfs because the sulfur had to come from solid matter accreted during planet formation, not gas!

Intermittent fasting appears to be no better than doing nothing when it comes to helping people who are overweight or have obesity lose weight

The third interstellar object detected in our Solar System (3I/ATLAS) has a unique and continually unfolding story to tell of its nature and origin. In a recent paper, scientists from the i4is show how a spacecraft performing a Solar Oberth Manoeuvre (SOM) could intercept 3I/ATLAS to learn its secrets.

Saturn's tiny moon Enceladus, famous for its water geysers, has been revealed as a giant electromagnetic powerhouse whose influence extends over half a million kilometres through the ringed planet's magnetosphere. Analysis of 13 years of Cassini data shows the 500 kilometre wide moon creates a lattice like structure of crisscrossing electromagnetic waves known as Alfvén wings, that bounce between Saturn's ionosphere and the plasma torus surrounding Enceladus's orbit, reaching distances 2,000 times the moon's own radius. It changes our understanding of how small icy moons can influence their giant planetary hosts, with implications for the moons of Jupiter and perhaps even distant exoplanetary systems.

Scientists have discovered a revolutionary way to measure Earth's radiation budget by observing our planet from the Moon. A team of astronomers have revealed that lunar observations capture Earth as a complete disk, filtering out local weather noise and revealing planet scale radiation patterns dominated by spherical harmonic functions, effectively creating a unique "fingerprint" of Earth's outgoing radiation. This Moon based perspective solves fundamental limitations of satellite observations, which struggle to achieve both temporal continuity and spatial consistency, offering a new tool for understanding global climate change with unprecedented clarity.

Designed for versatility, Ariane 6 can adapt to each mission: flying with two boosters for lighter payloads, or four boosters when more power is needed. In its four-booster configuration, Ariane 6 can carry larger and heavier spacecraft into orbit, enabling some of Europe’s most ambitious missions.

Well, I might as well reveal part of my very long list of “best music”.  This time I’ll post my choice of the best “songs about aging or dying” for Baby Boomers.  These aren’t necessarily all good (I’m not a fan of Mellencamp, for instance), but they’re all notable. And yes, I realize that “Long May You Run” is really about Neil Young’s car (a 1948 Buick Roadmaster hearse he called Mortimer Hearseburg), but it’s still appropriate.  Further, some of the songs are about lost love, but all refer to the sadness of passing time.

Father and Son                        Cat Stevens
Touch of Gray                        The Grateful Dead
When I’m Sixty-Four            The Beatles
Boys of Summer                     Don Henley
Cherry Bomb                          John Mellencamp
Long May You Run                Stills-Young Band
All Summer Long                   The Beach Boys
Caroline No                            The Beach Boys
Nick of Time                          Bonnie Raitt
When We Was Fab                 George Harrison
All those Years Ago                George Harrison
Rockin’ Chair                         The Band
Taxi                                         Harry Chapin
Cat’s in the Cradle                  Harry Chapin
Old Friends (Bookends)         Simon and Garfunkel
Don’t Fear the Reaper             Blue Öyster Cult
Wasted on the Way                 Crosby Stills & Nash

I welcome readers’ suggestions, and I’ll put up five of the songs that I think are particularly good and underappreciated:

“Boys of Summer” (1984). For some reason this song absolutely brings back my own teenage years, and quite vividly:

“Caroline, No” (1966), by the great Brian Wilson.

“All Those Years Ago” (1981).  Nobody seems to remember this song by George Harrison, but it’s not only great, but a moving tribute to his late fellow Beatle, John Lennon. It’s clear that despite their tiffs, Harrison really loved Lennon.

“Taxi” by Harry Chapin (1972).  I’m sure this song is long forgotten, but it’s among the very best ones on the list. The “soprano” part is sung by “Big John” Wallace, Chapin’s bassist; everybody thought that the original record used a female voice. You can end the song at 7:31; it just repeats with the lyrics shown.

“Nick of Time” by Bonnie Raitt (1989).  I love this song; the tune is excellent, with a good hook, and the words are wonderful: