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'Sexome' microbes swapped during sex could aid forensic investigations

New Scientist Feed - Wed, 02/12/2025 - 8:00am
Forensic scientists investigating cases of sexual assault may be able to use the genital microbiome to identify the perpetrator, as researchers have found that this "sexome" is exchanged between partners during intercourse
Categories: Science

Strongest evidence yet that Ozempic and Wegovy reduce alcohol intake

New Scientist Feed - Wed, 02/12/2025 - 8:00am
The drug semaglutide has been linked to a lower risk of alcoholism before, but now we have strong evidence that it really does help curb drinking
Categories: Science

Dancing turtles help us understand how they navigate around the world

New Scientist Feed - Wed, 02/12/2025 - 8:00am
Some turtles "dance" when they anticipate food, which gives us clues as to how they navigate from A to B
Categories: Science

How a moth uses an optical illusion to disguise itself as a leaf

New Scientist Feed - Wed, 02/12/2025 - 8:00am
The smooth wings of fruit-sucking moths appear to be ridged like a leaf – but the resemblance is created by nanostructures that reflect light in an unusual way
Categories: Science

Record-breaking neutrino spotted tearing through the Mediterranean Sea

New Scientist Feed - Wed, 02/12/2025 - 8:00am
A neutrino with more energy than we've ever seen before was picked up by a detector on the floor of the Mediterranean Sea, and it seems to have a distant cosmic origin
Categories: Science

How big is a neutrino? We're finally starting to get an answer

New Scientist Feed - Wed, 02/12/2025 - 8:00am
Our estimates of the size of a neutrino span from smaller than an atomic nucleus to as large as a few metres, but now we are starting to narrow down its true value
Categories: Science

Quail-sized feathered dinosaur may be the earliest known bird

New Scientist Feed - Wed, 02/12/2025 - 8:00am
Archaeopteryx, long considered the earliest fossil bird, could be knocked off its perch by Baminornis zhenghensis, which lived around 150 million years ago and had a short tail like those of modern birds
Categories: Science

A whole new world of tiny beings challenges fundamental ideas of life

New Scientist Feed - Wed, 02/12/2025 - 8:00am
The surprising discovery of entities smaller than viruses raises profound questions about what life is and how it got started
Categories: Science

A Blown-Glass Structure Could House Astronauts on the Moon

Universe Today Feed - Wed, 02/12/2025 - 7:17am

Humanity will eventually need somewhere to live on the Moon. While aesthetics might not be the primary consideration when deciding what kind of habitat to build, it sure doesn’t hurt. The more pleasing the look of the habitat, the better, but ultimately, the functionality will determine whether or not it will be built. Dr. Martin Bermudez thinks he found a sweet synergy that was both functional and aesthetically pleasing with his design for a spherical lunar habitat made out of blown glass. NASA apparently agrees there’s potential there, as he recently received a NASA Institute for Advanced Concepts (NIAC) Phase I grant to flesh out the concept further.

Bermudez’s vision’s artistic design looks like something out of an Arthur C. Clarke novel: a glass sphere rising off the lunar surface that could potentially contain living and work areas for dozens of people. His firm, Skyeports, is founded on creating these blown glass structures in space.

The design has some challenges, as Dr. Bermudez discusses in an interview with Fraser. First is how to build this thing. It’s far too large to ship in any conventional lunar lander. However, there’s also no air on the Moon to use as the blown gas to create the spherical shape. Dr. Bermudez plans to utilize argon, which would initially be shipped up from Earth to fill the sphere. Argon has several advantages in that it’s a noble gas and not very reactive, so it’s unlikely to explode in the furnace while the glass is blown.

Video animation showing the blown glass concept.
Credit – Skyeports YouTube Channel

Surprisingly, the lack of outside air pressure actually makes it easier to form a sphere than it would be on Earth since less pressure would be necessary to expand the sphere outwards. There are some nuances in the glass as well, with it being more like a glass lattice with embedded titanium or aluminum to make it stronger. Specific kinds of glass, such as borosilicate glass, could potentially add to the strength of the glass itself.

Most of the materials required to create such a structure could already be found on the lunar surface. Lunar regolith is full of the raw building materials required to make the structure work. Some of it has already been blasted into glass-like structures called agglutinates when micrometeoroids hit the lunar surface.

Those micrometeoroid impacts pose another risk to the glass sphere. Dr. Bermudez suggests having multiple layers of glass protecting the habitat, each with a layer of argon between them, like modern-day double-glazed windows. He suggests that spinning the outer layer might also provide some advantage, as will the spherical shape itself, as the impact force will dissipate better into the structure than it would on a flat surface.

3D printing is one of the fabrication technologies the blown glass sphere will have to compete with, as Fraser discusses.

Dr. Bermudez’s dreams don’t stop at the Moon, though. He suggests such a glass-blown structure could be useful on Mars or asteroids, where the microgravity would make it even easier to create these structures. On Mars, such a habitat might be limited to the top of Olympus Mons, where the atmosphere is thinner, and there isn’t as much wind and dust that could erode away the outer layers.

Many use cases exist for a structure like this, though many technical challenges remain. NIAC is the place for novel ideas that could potentially impact space exploration, and this one certainly fits that bill. As Dr. Bermudez works through de-risking his design, we get closer than ever to a future of aesthetically pleasing habitats on the Moon and everywhere else in the solar system.

Learn More:
NASA / Martin Bermudez – Lunar Glass Structure (LUNGS): Enabling Construction of Monolithic Habitats in Low-Gravity
UT – Glass Fibers in Lunar Regolith Could Help Build Structures on the Moon
UT – Recreating the Extreme Forces of an Asteroid Impact in the Lab
UT – Conceptual Design for a Lunar Habitat

Lead Image:
Artist’s concept of a lunar sphere on the lunar surface.
Credit – NASA / Martin Bermudez

The post A Blown-Glass Structure Could House Astronauts on the Moon appeared first on Universe Today.

Categories: Science

Jesus ‘n’ Mo ‘n’ hypocrisy

Why Evolution is True Feed - Wed, 02/12/2025 - 7:00am

Today’s Jesus and Mo strip, called “crimes,” came with a link: “Disestablish the Church of England“. And this time it’s Jesus rather than Mo who shows the characteristic hypocrisy or doublethink of the Divine Duo.  Also, note the decline in respect for religion!

Categories: Science

Darwin Day stuff

Why Evolution is True Feed - Wed, 02/12/2025 - 6:15am

In lieu of readers’ wildlife today, I’ll show some drawings and photos in honor of Darwin’s Birthday.  (Note to those malcontents who think that evolution is a religion that worships Darwin as a God: no, we do not think Darwin is infallible. He made a lot of errors, and his neglect of genetics and of how species really arise are big lacunae. Nevertheless, he’ll gone down in history as perhaps the most influential biologist ever.)

This comes from Athayde Tonhasca Júnior.

Here is my own Jewish Darwin Fish, just photographed:

More from Athayde. A mockery of the Christian Fish (there are many):

A big Darwin Award for this:

Darwin was born in Shrewsbury on this day in 1809 and attended Shrewsbury School as a boarder beginning at age 8. He went to the University of Edinburgh Medical School in 1825, but couldn’t stand the sight of blood and preferred collecting beetles. He dropped out and attended Cambridge University until 1831, when he started on the epic five-year voyage of the Beagle.  Here is his statue is in front of Shrewsbury School:

Bs0u10e01, CC BY-SA 4.0, via Wikimedia Commons

Darwin was pretty well off, and became more so when he married Emma Wedgwood, heiress of the Wedgwood pottery company. He married Emma in 1839 and in 1842 they moved to Down House in Kent (visit it; it’s not far from London!).  The couple had ten children, seven of whom survived. Darwin lived at Down House the rest of his life (he died in 1882), and it was there that he wrote On the Origin of Species and all his subsequent books. Here’s his study in Down House, which is pretty much as it was when he worked there.  I understand that he wrote in the chair, using a board placed over the arms. There’s also a basin behind a screen where Darwin would go to vomit, for he was often ill with a disease that we still don’t understand.

It’s me at Down House: August 19, 2008. You can see that Darwin had a nice mansion:

My friend Andrew Berry, who went to Shrewsbury School, and Janet Browne, who wrote the definitive biography of Darwin (two volumes). It is magnificent and written beautifully: a must-read. Janet showed us around Down House, which was a rare opportunity! I understand she’s revising it into one volume, perhaps because people lack attention spans these days, but I’d read the two-volume bio.

A cat I photographed at Down House. Darwin didn’t have much truck with cats and preferred d*gs. However, there are cats there now:

Here’s a tweet that points to many caricatures of Darwin and Darwinism, carefully collected and curated by John van Wyhe on his fantastic Darwin Online website. There are caricatures of Darwin, caricatures of evolution, and drawings from the 1925 Scopes “monkey trial”. I’ll give a few of each, with permission from van Wyhe.

For #DarwinDay, John van Wyhe shares this new collection of Darwin/evolution caricatures on the Darwin Online website: darwin-online.org.uk/Caricatures….Image: "This way to daylight my sons," Darwin says to Huxley and Tyndall (holding the banner of Science) in an 1873 caricature#histsci #HPS

Michael D. Barton (@darwinsbulldog.bsky.social) 2025-02-12T03:25:05.199Z

Caricatures of Darwin. All captions are from the website:

c.1828 Two humorous ink sketches of Darwin riding giant beetles by fellow Cambridge undergraduate Albert Way, with captions “Darwin & his hobby.” and “Go it Charlie!”. The joke in this instance being Darwin’s obsession with collecting beetles as an undergraduate at Christ’s College, Cambridge. See Diana Donald’s entry on this here. See some of Darwin’s beetle captures here. (Yale University Library & Falvey Library, Villanova University) 1871 “MR. BERGH TO THE RESCUE.” At the door of the “SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS. PRES. BERGH”. Harper’s Weekly (19 August): 776.

A postmortem portrait:

1882 “THE LATE CHARLES DARWIN.” The Wasp (San Francisco) 8, no. 300 (28 April): front cover.

Caricatures of Darwinism:

1872 “London: a Pilgrimage” by Blanchard Jerrold and Gustave Doré. The gaping human visitors seen from inside the Monkey House, in the Zoological Gardens, London, appear rather monkey-like themselves. This was only a year after Darwin’s Descent of man was published.

1909 “How true! How True! | DARWIN [on cover of a magazine] | IN THE GOLDEN CHAIN OF FRIENDSHIP | REGARD ME AS A ‘MISSING’LINK!” By H. H. Tammen. “994”. USA postcard, stamped 1912.And two from the Scopes Trial:

1925 “Tennessee’s St. Patrick”. Los Angeles Times (27 March). Bryan wields a club “Evolution must not be taught in the schools of Tennessee” against scurrying apes and monkeys.

And from Chicago (a Darwinian town) showing how banning the teaching of evolution just creates interest in it:

1925 “HOW THEY ARE TEACHING EVOLUTION IN TENNESSEE”. Chicago Tribune (27 May).
Categories: Science

BBC Takes On Appeal to Nature Fallacy

Science-based Medicine Feed - Wed, 02/12/2025 - 4:57am

It’s always good (and frustratingly rare) to see the mainstream media get it right when it comes to pseudoscience in medicine. Too often the narrative is – scientists are baffled at this alternative “one easy trick” to improve your health. Most mainstream articles on pseudoscience in medicine frame their reporting around a positive anecdote, and at best throw in some token skepticism […]

The post BBC Takes On Appeal to Nature Fallacy first appeared on Science-Based Medicine.
Categories: Science

Waste surveillance at just 20 airports could spot the next pandemic

New Scientist Feed - Wed, 02/12/2025 - 2:00am
A waste-water surveillance network of strategic international airports could quickly detect outbreaks of new diseases – and provide early warnings of future pandemics
Categories: Science

AI unlocks genetic clues to personalize cancer treatment

Computers and Math from Science Daily Feed - Tue, 02/11/2025 - 8:56pm
A groundbreaking study has uncovered how specific genetic mutations influence cancer treatment outcomes -- insights that could help doctors tailor treatments more effectively. The largest study of its kind, the research analyzed data for more than 78,000 cancer patients across 20 cancer types. Patients received immunotherapies, chemotherapies and targeted therapies.
Categories: Science

A Lunar Map for the Best Places to Get Samples

Universe Today Feed - Tue, 02/11/2025 - 8:21pm

How can a geologic map of a lunar impact crater created billions of years ago help future human and robotic missions to the lunar surface? This is what a recent study published in The Planetary Science Journal hopes to address as an international team of researchers produced arguably the most in-depth, comprehensive, and highest resolution geologic maps of Orientale basin, which is one of the largest and oldest geologic structures on the Moon. This study has the potential to help scientists, engineers, and mission planners develop sample return missions that could place absolute ages on the Moon’s geology, resulting in better understanding the formation and evolution of our Moon and the Earth.

For the study, the researchers created a 1:200,000-scale geologic map of the Moon’s Orientale basin while focusing on identifying what are known as impact melt deposits, which are molten rocks created from a high-speed impact and intense heat that cooled and is now frozen in time, thus preserving its geologic record of when it was formed billions of years ago. The 1:200,000-scale means the map is 200,000 times smaller than in real life. Additionally, one pixel on the geologic map is equal to 100 meters, or approximately the size of an American gridiron football field, which improves upon previous Orientale basin geologic maps that were created at 1:5,000,000-scale.

“We chose to map Oriental basin because it’s simultaneously old and young,” said Dr. Kirby Runyon, who is a Research Scientist at the Planetary Science Institute and lead author of the study. “We think it’s about 3.8 billion years old, which is young enough to still have its impact melt freshly exposed at the surface, yet old enough to have accumulated large impact craters on top of it as well, complicating the picture. We chose to map Orientale to test melt-identification strategies for older, more degraded impact basins whose ages we’d like to know.”

The goal of the study is to not only create an improved geologic map of Orientale basin, but to provide a foundation for future missions to potentially obtain surface samples of the impact melt and return them to Earth for analysis. Such analyses would reveal absolute ages of the impact melt through radiometric dating since these samples have been frozen in time for potentially billions of years. These results could help scientists unravel the Earth’s impact history, as both the Earth and Moon were potentially formed around the same period.

Along with the targeted impact melt, the team successfully identified and mapped a myriad of geologic features within Orientale basin as part of the new geologic map, including smaller craters within Orientale, fractures, fault lines, calderas, crater ejecta, and mare (volcanic basalt deposits), while also constructing a top-to-bottom map of Orientale basin, also called a stratigraphic map, that shows the most recent layers on top with the oldest layers on the bottom.

Image of the most recent Orientale basin geologic map at 1:200,000-scale, which improves upon past geologic maps of the region that were 1:5,000,000-scale. The project focused on impact melt (depicted in red), which was created from the extreme heat of the high-speed impact and has been preserved for potentially billions of years. The stars represent potential landing sites for future sample return missions that scientists can analyze back on Earth to determine the absolute age of Oriental basin. (Credit: Runyon et al.)

Unlike Earth, whose surface processes like plate tectonics and multitude of weather processes have erased impacts from billions of years ago, the preserved lunar geologic record could provide incredible insight into not only Earth’s impact history, but both how and when life first emerged on our planet. This is due to Orientale basin’s crater size and age, as such a large impact on Earth billions of years ago could have postponed or reset how and when life first emerged on the Earth.

“Giant impacts – like the one that formed Orientale – can vaporize an ocean and kill any life that had already started,” said Dr. Runyon. “Some recent modeling has shown that we probably never totally sterilized Earth during these big impacts, but we don’t know for sure. At some point our oceans could have been vaporized from impacts, then recondensed and rained out repeatedly. If that happened a number of times, it’s only after the last time that life could have gotten a foothold.”

While Orientale basin is one of the most striking features on the lunar surface, more than approximately 75 percent of it is not visible from Earth due to its location at the lunar nearside and farside boundary on the western limb of the Moon as observed from the Earth. Therefore, studying the Orientale basin is only possible with spacecraft. Despite this, Orientale basin was first suggested to be an impact crater during the 1960s when scientists at the University of Arizona’s Lunar and Planetary Laboratory used groundbreaking techniques to “image” the sides of the Moon not visible to Earth using telescopic images taken from the Earth.

While NASA is focused on returning astronauts to the lunar surface with its Artemis program with the goal of establishing a permanent human presence on the Moon, returning scientific samples from Orientale basin could provide enormous scientific benefits for helping us better understand both the age of the Moon but also how and when life emerged on Earth billions of years ago.

How will the Orientale basin geologic map help us better understand the Moon’s and Earth’s history in the coming years and decades? Only time will tell, and this is why we science!

As always, keep doing science & keep looking up!

The post A Lunar Map for the Best Places to Get Samples appeared first on Universe Today.

Categories: Science

Engineering biological reaction crucibles to rapidly produce proteins

Matter and energy from Science Daily Feed - Tue, 02/11/2025 - 4:02pm
Biomedical engineers have demonstrated a new synthetic approach that turbocharges bacteria into producing more of a specific protein, even proteins that would normally destroy them, such as antibiotics. The technique could be a boon to industries that use bacteria to produce a wide range of products such as pharmaceuticals, industrial chemicals and biofuels.
Categories: Science

Breast cancer treatment advances with light-activated 'smart bomb'

Matter and energy from Science Daily Feed - Tue, 02/11/2025 - 4:02pm
Scientists have developed new light-sensitive chemicals that can radically improve the treatment of aggressive cancers with minimal side effects. In mouse tests, the new therapy completely eradicated metastatic breast cancer tumors.
Categories: Science

Breast cancer treatment advances with light-activated 'smart bomb'

Computers and Math from Science Daily Feed - Tue, 02/11/2025 - 4:02pm
Scientists have developed new light-sensitive chemicals that can radically improve the treatment of aggressive cancers with minimal side effects. In mouse tests, the new therapy completely eradicated metastatic breast cancer tumors.
Categories: Science

Turning car and helicopter exhaust into thermoelectric energy

Matter and energy from Science Daily Feed - Tue, 02/11/2025 - 4:02pm
Combustion engines, the engines in gas-powered cars, only use a quarter of the fuel's potential energy while the rest is lost as heat through exhaust. Now, a study demonstrates how to convert exhaust heat into electricity. The researchers present a prototype thermoelectric generator system that could reduce fuel consumption and carbon dioxide emissions -- an opportunity for improving sustainable energy initiatives in a rapidly changing world.
Categories: Science

Older people in England are more satisfied after covid-19 pandemic

New Scientist Feed - Tue, 02/11/2025 - 4:01pm
Surveys before, early on in and towards the end of the covid-19 pandemic suggest that although older people's well-being dipped in 2020, it increased once virus-related restrictions in England were lifted
Categories: Science

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