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Exercise 'sweet spot' reverses cognitive decline in aging mice
Researchers have discovered an exercise "sweet spot" that reverses the cognitive decline in aging mice, paving the way for human studies. After more than a decade of research, the team found 35 days of voluntary physical exercise improved learning and memory. "We tested the cognitive ability of elderly mice following defined periods of exercise and found an optimal period or 'sweet spot' that gre


Researchers capture high-frequency oscillations in the gigantic eruption of a neutron star
An international scientific group with outstanding Valencian participation has managed to measure for the first time oscillations in the brightness of a magnetar during its most violent moments. In just a 10th of a second, the magnetar released energy equivalent to that produced by the sun in 100,000 years. The observation was carried out without human intervention, thanks to an artificial intelli
Early humans gained energy budget by increasing rate of energy acquisition, not energy-saving adaptation
A team of researchers affiliated with multiple institutions in the U.S., the Institute for Advanced Study in Toulouse, France and the Max Planck Institute for Evolutionary Anthropology in Germany has found evidence that suggests early humans gained an energy budget by increasing their rate of energy acquisition, not by taking advantage of adaptive strategies. In their paper published in the journa
Skeleton of young man killed by ancient tsunami found on Turkish coast
An international team of researchers has found and excavated the remains of a young man killed approximately 3,600 years ago by a tsunami created by the eruption of Thera—a volcano located on what is now the island of Santorini. In their paper published in Proceedings of the National Academy of Sciences, the group describes how the remains were found and how they were identified as belonging to a
Drunken solution to the chaotic three-body problem
The three-body problem is one of the oldest problems in physics: It concerns the motions of systems of three bodies—like the sun, Earth, and the moon—and how their orbits change and evolve due to their mutual gravity. The three-body problem has been a focus of scientific inquiry ever since Newton.
The code must go on: An Afghan coding bootcamp becomes a lifeline under Taliban rule
Four months after the Afghan government fell to the Taliban, 22-year-old Asad Asadullah had settled into a new routine. In his hometown in Afghanistan's northern Samangan province, the former computer science student started and ended each day glued to his laptop screen. Since late October, Asadullah had been participating in a virtual coding bootcamp organized by Code Weekend, a volunteer-run co
Prejudice against Native Americans may spike after sports mascot changes
When professional or college sports teams remove a Native American mascot, bias against Native Americans spikes, a new study shows. Research has shown that Native American mascots provoke racist stereotypes and harm the self-esteem of Native youth. But what happens when a mascot is removed, as several college and professional teams have done? "I remember seeing lots of racist reactions to the Cle
The CDC slashes estimates of omicron's prevalence in the U.S.
New data from the CDC released on Tuesday shows that while omicron remains the dominant variant, delta — which is the more severe strain — is still a worrisome driving force behind the current surge. (Image credit: Anna Moneymaker/Getty Images)
Russia's Aggression Against Ukraine Is Backfiring
Western intelligence agencies have warned that Russia is contemplating an invasion of Ukraine, perhaps involving some 175,000 troops. Vladimir Putin's government has already moved more than 100,000 troops along Ukraine's borders, including into Belarus. Russian officials have been making outrageously paranoid and false accusations. Russian Foreign Minister Sergei Lavrov, for example, recently bla
China Furious With Elon Musk for Endangering Its Space Station
Evasive Maneuvers SpaceX CEO Elon Musk just can't stop making enemies. After beefing with US senators , cabinet members , and fellow billionaires , it looks like he's capping off the year by pissing off *checks notes* the entire nation of China — an impressive feat, even for him. China recently informed the United Nations that its crewed space station Tianhe performed two evasive maneuvers this p
Covid: how long are people infectious and how do isolation rules vary?
The US has cut the self-isolation period to five days, while in England it is seven with negative tests The US has announced it is cutting the recommended self-isolation time with Covid to five days. How long are people with Covid infectious for, and why do the rules vary between countries? What are the rules for self-isolation in the UK? Continue reading…
Three-quarters of those in UK with cold symptoms likely to have Covid – study
Analysis by Zoe Covid app team shows increase from about 50% last week, with cases among 55- to 75-year-olds 'rising sharply' Coronavirus – latest updates See all our coronavirus coverage Three-quarters of people in the UK with new cold-like symptoms are likely to have Covid, but the rate of case growth is no longer exponential, scientists have said. According to analysis by the Zoe Covid study,
Labour calls for UK crackdown on tech firms over anti-vax content
Party says ministers failing to stand up to social media giants as posters continue to churn out disinformation Coronavirus – latest updates See all our coronavirus coverage Ministers have been urged to take tougher action against companies that fail to stamp out anti-vaccination content online, as it was revealed posters with hundreds of thousands of followers on social media are still churning
A Russian Spacecraft Is Stranded in Low Earth Orbit
Graveyard Orbit Well, this is a bit embarrassing. A Russian rocket is now stranded in orbit after it suffered an engine failure — and it might come crashing back down to Earth. Roscosmos, Russia's state space agency, launched its Angara A5 rocket as part of a demonstration on Monday, reports . The spacecraft was headed towards graveyard orbit, a region of space around Earth wh
Our Relationship With COVID Vaccines Is Just Getting Started
Walter Barker has, since the fall of 2020, had five doses of COVID-19 vaccine. He's already starting to ponder when he might need a sixth. Barker, a 38-year-old office worker in New York, received his first two doses a year ago, as part of an AstraZeneca vaccine trial. But the shots, which haven't been authorized by the FDA, couldn't get him into some venues. Sick of having to test every time he
Big Cars Are Killing Americans
After a decade of steady increases, the newest Ford F-250—part of Ford's F-Series of pickups, the No. 1 selling vehicle model in America—measures some 55 inches tall at the hood. That's "as tall as the roof of some sedans," a Consumer Reports writer remarked in a recent analysis examining the mega-truck trend. This height would easily render someone in a wheelchair, or a child, totally invisible
WHO warns Omicron could overwhelm health systems as cases rise to record highs in Europe
Restrictions return in China, South Africa and Germany as countries around the world struggle to contain new variant Coronavirus – latest updates See all our coronavirus coverage The World Health Organization has warned that the Omicron coronavirus variant could lead to overwhelmed healthcare systems even though early studies suggest it sparks milder disease, as daily case records fell across Eur
Space Colonists Will Likely Resort to Cannibalism, Scientist Says
As if things weren't going to be tough enough for future space colonists, experts now say that they're likely going to face food troubles — and that might just turn them into cannibals. Charles Cockell, professor of astrobiology at Edinburgh University, spoke to Metro about the challenges astronauts will face if and when humans attempt to colonize places such as Jupiter's moon Callisto and Saturn
Now Christmas is over, how bad is the Omicron situation in England? | Paul Hunter
Key to understanding the next part of the pandemic will be the number, and length, of hospitalisations Public holidays are notoriously difficult for epidemiologists – people may avoid or delay both testing and hospital visits, making for slightly unreliable numbers. But some things are still clear from the latest Covid data released by the government. Omicron is now responsible for more than 90%
A Neuroscientist Prepares for Death
W hen a routine echocardiogram revealed a large mass next to my heart, the radiologist thought it might be a hiatal hernia—a portion of my stomach poking up through my diaphragm to press against the sac containing my heart. "Chug this can of Diet Dr. Pepper and then hop up on the table for another echocardiogram before the soda bubbles in your stomach all pop." So I did. However, the resulting im
Elon Musk rejects mounting criticism his satellites are clogging space
SpaceX founder says planned 42,000-strong network will not dominate slots or radio frequencies Elon Musk has rejected criticisms that his company is taking up too much room in space, saying his tens of thousands of planned satellites would be able to coexist with many others. As well as building up Tesla into the world's most valuable carmaker by pioneering electric cars, Musk has shaken up the s
Natural History Museum identifies more than 500 new species in 2021
'Hell herons', metallic beetles, tiny shrimp – scientists have been busy describing unusual creatures despite Covid restrictions Six new dinosaurs, an Indian beetle named after Larry the cat, and dozens of crustaceans critical to the planet's carbon cycle were among 552 new species identified by scientists at the Natural History Museum this year. In 2021, researchers described previously unknown
The Cost of Engaging With the Miserable
Every morning, I wake up and grab my doom machine. My phone is a piece of revolutionary technology that puts the entire world a scroll away, its every pixel an industrial miracle. It's also a cataclysm-delivery device. I roll over and click the blue "f" logo to watch older friends and relatives grow angry and entrenched in their politics. I click on Twitter and drown in a torrent of terrible news
Emily in Paris Is the Last Guilty Pleasure
Right-thinking people agree: Like the burning of Notre Dame, Netflix's Emily in Paris is a catastrophe for the culture. In mid-2020, when COVID-19 was still novel, the first season of the Sex and the City creator Darren Star's new sitcom portrayed an American marketing professional (Emily, played by Lily Collins) Instagramming her way through the most sophisticated city on the planet (Paris, shot
Health Experts Slam CDC After It Shortened COVID Isolation Guidelines
The Center for Disease Control and Prevention (CDC) updated its COVID-19 guidelines on Monday, shortening the isolation timeline for those who contract the virus to just five days — and raising the hackles of many health experts in the process. Previously, the CDC stated that people needed to isolate for ten days after their first positive test results. The latest announcement cut that isolation
Chatboten Betsy ska erbjuda terapisamtal
Snart kan personer med ångest få hjälp av en interaktiv terapi-chatbot. Datorprogrammet har fått namnet Betsy och erbjuder stöd genom att prata. – Betsy är unik, i dag finns det ingen svensktalande chatbot, säger forskaren Almira Osmanovic Thunström.
How to Go After Rogue Prosecutors
When the world saw Los Angeles police officers beat Rodney King on camera in 1991, conversations about how the police engage with communities of color were destined to change. Congress heard the general public's cries for accountability. Although the Violent Crime Control and Law Enforcement Act of 1994 hiked up prison sentences and increased funding for police recruitment, it also contained a pr
How nit glue could help answer head-scratchers about our ancestors
Scientists say ancient human DNA can be recovered from the cement made by head lice to stick eggs to hair An unusual source of ancient human DNA could help scientists unpick details of our ancestors' lives and answer longstanding questions. The source? Nit glue. Scientists studying mummified remains from South America that date back 1,500-2,000 years say they have recovered ancient human DNA from
How I Demolished My Life
I had wanted, I thought, soapstone counters and a farmhouse sink. I had wanted an island and a breakfast nook and two narrow, vertical cabinets on either side of the stove; one could be for cutting boards and one could be for baking sheets. I followed a cabinetry company called Plain English on Instagram and screenshotted its pantries, which came in paint colors like Kipper and Boiled Egg. Plain
Elon Musk Says He Thinks He Knows the Real Identity of Satoshi Nakamoto
Elon's Theory SpaceX and Tesla CEO Elon Musk thinks he knows who created Bitcoin — and it's definitely not him. The billionaire meme thief took part in an interview with artificial intelligence researcher Lex Fridman on the latter's podcast published on Tuesday . While the chat flowed from SpaceX launches, to colonizing Mars, to even love, Fridman eventually asked Musk about his theory on who is
I Have Some Questions About the World of Teletubbies
There is a dome, post-Soviet and colorful, wired with the kind of technological doodads you might see in a Bond villain's lair— revolving modernist chairs, disembodied voices rising out of metal speakers issuing orders for the day. A giant ball bounces ominously in the background. People disappear from time to time, but nobody leaves. Everyone seems to be constantly being watched. I'm describing
Give Your Money. Give Your Time. Don't Tell Anyone.
" How to Build a Life " is a weekly column by Arthur Brooks, tackling questions of meaning and happiness. Click here to listen to his new podcast series on all things happiness, How to Build a Happy Life . T he end of the year isn't just the holiday season; it's also charity season. Estimates of charitable giving indicate that at least 20 percent of all gifts are made in December, when our holida
Alan Ward obituary
My father, Alan Ward, who has died aged 96, was a physicist who profoundly influenced science education in Africa. Born in Woodford, Essex, to Ursula (nee Vale) and Edward Ward, who worked in a bank, Alan went to Chichester high school for boys in West Sussex. Following a wartime degree in physics at the University of Birmingham, he completed a PhD in 1949, after which he was sent by the Atomic E
Very Bitter Rematch—Chuck vs Justin Swanstrom | Street Outlaws: No Prep Kings
Stream Street Outlaws: No Prep Kings on discovery+ ► #StreetOutlawsNoPrepKings #StreetRacing #Discovery Subscribe to Discovery: Follow Us on TikTok: We're on Instagram! Join Us on Facebook: Follow Us on
The Atlantic Daily: Three Reasons to Be Optimistic About the 2020s
Every weekday evening, our editors guide you through the biggest stories of the day, help you discover new ideas, and surprise you with moments of delight. Subscribe to get this delivered to your inbox. This year was … a lot. Delta, Omicron, inflation, threats to democracy. I get why most people are feeling exhausted. I still believe that better times are coming. My new newsletter, Work in Progre
Cosmic history can explain the properties of Mercury, Venus, Earth and Mars
Astronomers have managed to link the properties of the inner planets of our solar system with our cosmic history: with the emergence of ring structures in the swirling disk of gas and dust in which these planets were formed. The rings are associated with basic physical properties such as the transition from an outer region where ice can form where water can only exist as water vapor. The astronome
Scientists design and construct minimized synthetic carbon fixation cycle
Scientists from the Institute of Microbiology of the Chinese Academy of Sciences (IMCAS) recently reported a minimized synthetic carbon fixation cycle. The cycle only contains four biochemical reactions and is capable of condensing two molecules of carbon dioxide into one molecule of oxalate in each round. The study was published in ACS Catalysis.
Ultraluminous X-ray sources in NGC 891 investigated by researchers
Researchers from the University of Chicago and Fordham University have conducted a long-term monitoring of three ultraluminous X-ray sources (ULXs) in the spiral galaxy NGC 891. Results of the research, presented in a paper published December 22 on, provide more insights into the properties of these sources and could help us better understand the nature of the host galaxy.
Florida Surgeon General declares single positive COVID test proves immunity forever
Florida's Surgeon General, Dr. Joseph Ladapo, continues to defy scientific consensus with new rules declaring a single positive COVID test proves one has "natural immunity" forever. This is but one example of recently enacted laws and similar efforts gutting public health protections in Florida, thanks to Ladapo and his boss, Gov. Ron DeSantis. The post first appeared on Science-Based Medicine .
Top 10 books about self-improvement | Anna Katharina Schaffner
In time for new year resolutions, a cultural historian chooses some of the best guides to making a better life, dating back to some of our earliest literature It is easy to dismiss self-help books and those who read them. But not only do we need serious self-help, we must also take self-help more seriously. Valued at $11bn (£8bn) worldwide, self-help is a major global industry. It both reflects a
'A clusterf**K': Authors plagiarize material from NIH and elsewhere, make legal threats — then see their paper retracted
Stolen data, "gross" misconduct, a strange game of scientific telephone, and accusations of intimidation – Santa came late to Retraction Watch but he delivered the goods in style. Last May, the journal Cureus published a paper titled "Idiopathic CD4+ Lymphocytopenia Due to Homozygous Loss of the CD4 Start Codon." The paper caught the notice of Andrea … Continue reading
The worst technology of 2021
We've never relied more on technology to solve our problems than we do now. Sometimes it works. Vaccines against covid-19 have cut the death toll. We've got virus tests and drugs, too. But this isn't the story about what worked in 2021. This is MIT Technology Review's annual list of cases where innovation went wrong. From the metaverse to Alzheimer's drugs, the technologies on this are the ones t
Omicron Continues to Wreak Havoc on Flights, Hospitals, and Worst of All, BTS
Welp, it looks like not even your favorite boy bands are safe from Omicron. Cases of the COVID-19 are surging across the globe as the highly transmissible Omicron variant becomes the most dominant strain of the virus. With an increase in travel due to the holiday season, it resulted in a perfect storm impacting flights, hospitals, sporting events, and even K-pop megastars BTS. BTS's management co
Developing tools to visualize DNA repair as never before
Each one of the trillions of cells that make up the human body suffers more than 10,000 DNA lesions every day. These injuries would be catastrophic if cells were unable to repair them, but a very delicate machinery that detects and repair genetic damage is at work to prevent DNA mutations and diseases such as cancer. With the help of machine learning applied to high-throughput microscopy, among ot
Large helium nanodroplets splash like water upon surface collisions
While working with helium nanodroplets, scientists at the Department of Ion Physics and Applied Physics led by Fabio Zappa and Paul Scheier have come across a surprising phenomenon: When the ultracold droplets hit a hard surface, they behave like drops of water. Ions with which they were previously doped thus remain protected on impact and are not neutralized.
Distant quasar J0439+1634 explored in X-rays
Using ESA's XMM-Newton spacecraft, an international team of astronomers has conducted X-ray observations of the most distant known gravitationally lensed quasar—J0439+1634. Results of the study, published December 20 on the arXiv pre-print server, shed more light on the properties of this source.
From the archive: Carlo Rovelli on how to understand the quantum world (part two) – podcast
From electrons behaving as both particles and waves to a cat in a box that's both dead and alive, the consequences of quantum physics are decidedly weird. So strange, that over a century since its conception, scientists are still arguing about the best way to understand the theory. In the second of two episodes , Ian Sample sits down with the physicist Carlo Rovelli to discuss his ideas for expla
Development of a new tool which uses focused light to reduce cellular contractile force
Cell generated force plays essential roles in a wide range of biological processes, such as cell motility, cytokinesis, and tissue morphogenesis. In a study published in Nature Communications, a research team led by the Division of Quantitative Biology at the National Institute for Basic Biology in Japan has successfully developed "OptoMYPT": an optogenetic tool that utilizes focused light to redu
The Atlantic Daily: The Highs and Lows of Biden's First Year
Every weekday evening, our editors guide you through the biggest stories of the day, help you discover new ideas, and surprise you with moments of delight. Subscribe to get this delivered to your inbox. President Joe Biden is ending his first year in office on a decidedly sour note. The coronavirus pandemic that he promised to crush is once again raging out of control; inflation is dampening the
A Very Radical, Very Delicious Take on Risk Management
You know that moment, just after you get a batch of cookies in the oven, when you take off your apron, place the mixing bowl neatly in the sink, fill it with water, and wash your hands to celebrate a job well done? Well, congratulations if you do. I've certainly never experienced it. As soon as I've formed the last reasonably sized cookie, my grubby little paws go straight for the dough that's st
Plasma lensing discovered in black widow pulsar
Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), a research team led by Dr. Wang Shuangqiang from the Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of Sciences discovered plasma lensing phenomenon in a black widow pulsar PSR J1720-0533.
The 10 Must-Read Stories of 2021
Today we're reflecting on what The Atlantic covered in 2021. Below you'll find stories that are both cautionary and hopeful—and that cover both the natural world and our digital one. To get a single Atlantic story curated and sent to your inbox each day, sign up for our One Story to Read Today newsletter . What Bobby McIlvaine Left Behind McIlvaine was 26 years old when he died in the September 1
The Biggest Brain Maps Ever Created Are Pushing the Frontiers of Neuroscience
Our quest to understand the brain's connections is a bit like aliens trying to understand Earthlings from outer space. Imagine having to track down every single person and their conversations across different continents, reconstruct noisy snippets into coherent messages, and from that data, infer the zeitgeist of the human race. That, essentially, is what neuroscientists are trying to achieve wit
Escape your comfort zone: I have always been the quiet one. Could learning to shout change my life?
I can endure anger, pain and frustration without the need to scream. But I realised that that could, in fact, be a problem. So I travelled to the countryside to try yelling In the summer of 2020, the London-based psychotherapist Zoë Aston hit the headlines with a scream-therapy campaign she had devised for the Icelandic tourism board. On a website called Looks Like You Need Iceland , visitors wer
NASA Launches James Webb Space Telescope, but Success Is Not Assured
A render of Webb's final configuration. After 20 years of work, the James Webb Space Telescope is finally in space. NASA and the ESA successfully launched the next-generation observatory on Christmas Day, fulfilling the agency's commitment to beginning the mission in 2021. While the Ariane 5 rocket performed perfectly, there are still many trials ahead for Webb — hundreds of things have to go rig
Habitat for Humanity Deploys First 3D Printed Home
(Photo: Habitat for Humanity Peninsula and Greater Williamsburg ) Habitat for Humanity, a non-profit that builds and repairs homes in partnership with lower-income families and individuals, has officially signed over its first 3D printed home. Habitat for Humanity partnered with Alquist to build the 1200-square-foot house in Williamsburg, VA. Alquist, a large-scale 3D printing company, aims to ma
The Year in Overflow Culture
Thanks to the constant content machine, there's more culture online than anyone knows what to do with. Here's the most baffling of the internet's 2021 leftovers.
'Degrowth' Isn't Just About the Economy. It's About Culture.
The idea that humanity would slow the global economy in order to save the planet has been derided as economically impractical and politically unviable. But the degrowth movement is less about sacrificing prosperity than it is about redefining it. And ultimately, argues Peter Sutoris, degrowth is inevitable.
Microglial methylation 'landscape' in human brain
Recent studies have shown variation in the gene-expression profile and phenotype of microglia across brain regions and between different age and disease states. But the molecular mechanisms that contribute to these transcriptomic changes in the human brain are not well understood. Now, a new study targets the methylation profile of microglia from human brain.
2021: A review of the year's 3,200 retractions
2021 was – as is always the case – a busy year at Retraction Watch. How could it not be, with our database of retractions surpassing 30,000 – and then 32,000 – with ten percent happening this year alone? Oh, and the pandemic. There were 72 retractions on our list of retracted COVID-19 papers when … Continue reading
Cannabis may contain heavy metals from the soil
A new meta-analysis examines the ability of cannabis plants to absorb heavy metals and discusses the resulting health impacts on consumers. The researchers propose a blueprint of strategies for growers to alleviate heavy-metal uptake by their crops. Cannabis plants—which can become industrial hemp, medical marijuana, and cannabidiol (CBD) oil, among other products—have an inherent ability to abso
Effect of afforestation on soil fungal community structure is greater than spatial distance
Afforestation is an important strategy to enhance terrestrial carbon sink. It alters regional landscapes and affects microbial processes in soil ecosystems. In particular, soil fungi, which play an important role in carbon and nitrogen cycling, could be greatly affected. However, at a watershed scale, the changes of soil fungal communities under afforestation could not only be influenced by host p
99 objects telling tales from ESA's technical heart
From simulated moondust to an ultraflat floor, a 3D-printed human bone to a wall decoration that once flew on the Hubble Space Telescope, the new 99 Objects of ESA ESTEC website gives visitors a close-up view of intriguing, often surprising artifacts assembled together to tell the story of ESA's technical heart.
From the oilfield to the lab: How a special microbe turns oil into gases
Microorganisms can convert oil into natural gas, i.e. methane. Until recently, it was thought that this conversion was only possible through the cooperation of different organisms. In 2019, a researcher suggested that a special archaeon can do this all by itself, as indicated by their genome analyses. Now, researchers have succeeded in cultivating this 'miracle microbe' in the laboratory. This ena
Leveraging space to advance stem cell science and medicine
The secret to producing large batches of stem cells more efficiently may lie in the near-zero gravity conditions of space. Scientists have found that microgravity has the potential to contribute to life-saving advances on Earth by facilitating the rapid mass production of stem cells.
Possible chemical leftovers from early Earth sit near the core
Down near the Earth's core, there are zones where seismic waves slow to a crawl. New research finds that these enigmatic and descriptively-named ultra-low velocity zones are surprisingly layered. Modeling suggests that it's possible some of these zones are leftovers from the processes that shaped the early Earth — remnants of incomplete mixing like clumps of flour in the bottom of a bowl of batte
Scientists retool CAR T cells to serve as 'micropharmacies' for cancer drugs
Immunotherapies called chimeric antigen receptor (CAR) T cells use genetically engineered versions of a patient's own immune cells to fight cancer. These treatments have energized cancer care, especially for people with certain types of blood cancers. Now, scientists have developed new CAR T cells that can do something their predecessors cannot: Make drugs.
Stopping dementia at the nose with combination of rifampicin and resveratrol
Researchers have shown in mice models of Alzheimer's disease, frontotemporal dementia, and dementia with Lewy bodies, that the intranasal administration of rifampicin and resveratrol in combination is safer and improves cognitive function more than rifampicin alone. The research results are expected to lead to the development of safe and effective nasal spray for the prevention of dementia.
Metabolic syndrome spikes risk of death from COVID-19
People hospitalized with COVID-19 who have a combination of high blood pressure, obesity, or diabetes associated with metabolic syndrome are at much higher risk of acute respiratory distress syndrome and death, according to a new study. The risk for developing acute respiratory distress syndrome (ARDS), a life-threatening lung condition that causes low blood oxygen, grew progressively higher with
How DNA is preserved in archaeological sediments for thousands of years
The analysis of ancient DNA preserved in sediments is an emerging technology allowing for the detection of the past presence of humans and other animals at archaeological sites. Yet, little is known about how DNA is preserved in sediment for long periods of time. Scientists have now shed light on the matter by isolating DNA from solid blocks of undisturbed sediment that are embedded in plastic res
Survey: Just 27% of Republican voters think Biden is really president
Just 27% of Republican voters believe President Biden is the rightful presidential winner, compared to 94% of Democrats, according to a new survey. "For a democracy to survive, parties must be willing to lose elections and politicians must be willing to acknowledge when they have lost," warns Bright Line Watch cofounder Gretchen Helmke, a professor of political science at the University of Roches
Planets Are Born from Dust Trap Rings – Facts So Romantic
The ALMA telescope, in Chile, sensitive to millimeter-sized dust, took these images of planet-forming disks. ALMA (ESO/NAOJ/NRAO), S. Andrews et al.; NRAO/AUI/NSF, S. Dagnello All we are is dust in the wind, man. The same goes for the planets and asteroids and comets. Starting from our dusty beginnings, gravity and a mess of other forces conspired to build our solar system. There's a venerable tr



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