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Why the MOSAiC Expedition's Research Is So Vital to Climate Change Research

On a ship frozen in the Arctic, scientists have spent all winter to shed light on exactly how the world is changing




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A Mysterious 25,000-Year-Old Structure Built of the Bones of 60 Mammoths

The purpose of such an elaborate structure remains a big open question




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Six Crazy Attempts to Geoengineer the Weather

These scientists and inventors set out to change the planet with these out-of-the-box ideas




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Meet the Ecologist Who Wants You to Unleash the Wild on Your Backyard

Fed up with invasive species and sterile landscapes, Douglas Tallamy urges Americans to go native and go natural




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Seven Ways to Learn About Natural History From Home

Deepen your understanding of the natural world with these free resources




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The Push for Tidal Power Faces Its Biggest Challenge Yet

The renewable energy source has never quite lived up to its potential, but a new experiment in Nova Scotia could flip the script




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Why Does Lightning Rarely Strike in the Arctic? And More Questions From Our Readers

You’ve got questions, we’ve got experts




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Why Warmer Weather Probably Won’t Stop COVID-19

Yes, most infectious diseases are seasonal. But waiting for COVID-19 to wane on its own is a bad idea




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The Fibonacci Sequence Is Everywhere—Even the Troubled Stock Market

The curious set of numbers shows up in nature and also in human activities.




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Why It’s So Difficult to Find Earth’s Earliest Life

Debate over Earth’s oldest fossils fuels the search for our deepest origins




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What Scientists Know About Immunity to the Novel Coronavirus

Though COVID-19 likely makes recovered patients immune, experts aren't sure how long protection lasts




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How Epidemics of the Past Changed the Way Americans Lived

Past public health crises inspired innovations in infrastructure, education, fundraising and civic debate




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Meet the Bee With a Body That’s Half Male, Half Female

So-called gynandromorphs are rare, but they can teach us a lot about development and evolution




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In Groundbreaking Find, Three Kinds of Early Humans Unearthed Living Together in South Africa

The different hominid species, possibly including the oldest-known Homo erectus, existed in the region's hills and caves




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A Comet May Have Destroyed This Paleolithic Village 12,800 Years Ago

Fragments of a comet likely hit Earth 12,800 years ago, and a little Paleolithic village in Syria might have suffered the impact




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Heavily Trafficked Songbirds Have a Path Back to Resiliency

Researchers see promise in recruiting red siskin pet traders as conservation partners




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More Than 30 Million Years Ago, Monkeys Rafted Across the Atlantic to South America

Fossil teeth uncovered in Peru reveal that an extinct family of primates, thought to have lived only in Africa, made it across the ocean




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Here’s How to Find Optimism in This Moment of Fear and Uncertainty

The Smithsonian's Earth Optimism Summit will now stream online starting this Earth Day; tune in and be inspired




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Here's Why This Smithsonian Scientist Studies Ancient Pathogens

As a biological anthropologist focused on health, diseases are part of Sabrina Sholts' specialty




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Why Science Needs Art

From teaching curious museumgoers to adding creativity to the scientific process, art thrives at the Smithsonian's National Museum of Natural History




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To Silence Wind Turbines and Airplanes, Engineers Are Studying Owl Wings

No one knows exactly how the nocturnal hunters manage their whisper-soft flight, yet it's inspiring the design of quieter airplanes, fans and wind turbines




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The American West May Be Entering a ‘Megadrought’ Worse Than Any in Historical Record

A new study of ancient climate has a dire warning about today's dry conditions




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Has Anyone Ever Run for President While in Prison? And More Questions From Our Readers

You've got questions. We've got experts




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The Science of Fear, the Royal Scandal That Made France Modern and Other New Books to Read

The fourth installment in our weekly series spotlights titles that may have been lost in the news amid the COVID-19 crisis




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Why the New Coronavirus Affects Some Animals, but Not Others

While the virus seems capable of infecting some pets and wild animals, these cases probably aren’t occurring often




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Why Bats Are One of Evolution’s Greatest Puzzles

Paleontologists seek the ancestors that could explain how bats became the only flying mammals.




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What an 1836 Typhus Outbreak Taught the Medical World About Epidemics

An American doctor operating out of Philadelphia made clinical observations that where patients lived, not how they lived, was at the root of the problem




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Fifty Things We’ve Learned About the Earth Since the First Earth Day

On April 22, 1970, Americans pledged environmental action for the planet. Here’s what scientists and we, the global community, have done since




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After the Dinosaur-Killing Impact, Soot Played a Remarkable Role in Extinction

The famous impact 66 million years ago kicked up soot into the atmosphere that played an even bigger role in blocking sunlight than experts had realized




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What Rome Learned From the Deadly Antonine Plague of 165 A.D.

The outbreak was far deadlier than COVID-19, but the empire survived




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The Complicated Legacy of Herbert Spencer, the Man Who Coined 'Survival of the Fittest'

Spencer's ideas laid the groundwork for social Darwinism, but scholars say there was much more to the Victorian Age thinker than that




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Ten Animals and Plants Around the World That You Can (Virtually) Adopt

While COVID-19 stymies travel, help conserve those things—from cacti to manta rays—that will beckon you later




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The Story of Charles Willson Peale’s Massive Mastodon

When a European intellectual snubbed the U.S., the well-known artist excavated the giant fossil as evidence of the new Republic’s strength and power




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Possible vaccine for virus linked to type 1 diabetes

According to many observations, certain virus infections may play a part in the autoimmune attack that leads to type 1 diabetes. Researchers have now produced a vaccine for these viruses in the hope that it could provide protection against the disease.




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Global trade in soy has major implications for climate

The extent to which Brazilian soy production and trade contribute to climate change depends largely on the location where soybeans are grown, according to a new study. In some municipalities, carbon dioxide emissions resulting from the export of soybean and derivatives are more than 200 times higher than in others.




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Vitamin D levels appear to play role in COVID-19 mortality rates

Researchers analyzed patient data from 10 countries. The team found a correlation between low vitamin D levels and hyperactive immune systems. Vitamin D strengths innate immunity and prevents overactive immune responses. The finding could explain several mysteries, including why children are unlikely to die from COVID-19.




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A billion years missing from geologic record: Where it may have gone

The geologic record is exactly that: a record. The strata of rock tell scientists about past environments, much like pages in an encyclopedia. Except this reference book has more pages missing than it has remaining. So geologists are tasked not only with understanding what is there, but also with figuring out what's not, and where it went.




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Highly efficient hydrogen gas production using sunlight, water and hematite

Hydrogen is a possible next generation energy solution, and it can be produced from sunlight and water using photocatalysts. A research group has now developed a strategy that greatly increases the amount of hydrogen produced using hematite photocatalysts. In addition to boosting the high efficiency of what is thought to be the world's highest performing photoanode, this strategy will be applied to artificial photosynthesis and solar water-splitting technologies via university-industry collaborations.




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Vitamin D linked to low virus death rate, study finds

A new study has found an association between low average levels of vitamin D and high numbers of COVID-19 cases and mortality rates across 20 European countries.




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Ancient Andes, analyzed

An international research team has conducted the first in-depth, wide-scale study of the genomic history of ancient civilizations in the central Andes mountains and coast before European contact. The findings reveal early genetic distinctions between groups in nearby regions, population mixing within and beyond the Andes, surprising genetic continuity amid cultural upheaval, and ancestral cosmopolitanism among some of the region's most well-known ancient civilizations.




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Immunity of recovered COVID-19 patients could cut risk of expanding economic activity

New modeling of coronavirus behavior suggests that an intervention strategy based on shield immunity could reduce the risk of allowing the higher levels of human interaction needed to support expanded economic activity.




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Which COVID-19 models should we use to make policy decisions?

A new process to harness multiple disease models for outbreak management has been developed by an international team of researchers. The team will immediately implement the process to help inform policy decisions for the COVID-19 outbreak.




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Laser loop couples quantum systems over a distance

For the first time, researchers have succeeded in creating strong coupling between quantum systems over a greater distance. They accomplished this with a novel method in which a laser loop connects the systems, enabling nearly lossless exchange of information and strong interaction between them. The physicists reported that the new method opens up new possibilities in quantum networks and quantum sensor technology.




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Physicists shed light on the nanoscale dynamics of spin thermalization

In physics, thermalization, or the trend of sub-systems within a whole to gain a common temperature, is typically the norm. There are situations, however, where thermalization is slowed down or virtually suppressed; examples are when considering the dynamics of electron and nuclear spins in solids. Understanding why this happens and how it can be controlled is presently at the center of a broad effort, particularly for applications in the emerging field of quantum information technologies.




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Key mechanism of cytokine storm in Castleman disease

Researchers discover what is happening at the cellular level when Castleman patients experience a cytokine storm.




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Olanzapine may help control nausea, vomiting in patients with advanced cancer

Olanzapine, a generic drug used to treat nervous, emotional and mental conditions, also may help patients with advanced cancer successfully manage nausea and vomiting unrelated to chemotherapy.




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Prediction tool shows how forest thinning may increase Sierra Nevada snowpack

Thinning the Sierra Nevada forest by removing trees by hand or using heavy machinery is one of the few tools available to manage forests. However, finding the best way to thin forests by removing select trees to maximize the forest's benefits for water quantity, water quality, wildfire risk and wildlife habitat remains a challenge for resource managers.




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Blood thinners may improve survival among hospitalized COVID-19 patients

Treating hospitalized COVID-19 patients with anticoagulants -- blood thinners that slow down clotting -- may improve their chances of survival, researchers report. The study could provide new insight on how to treat and manage coronavirus patients once they are admitted to the hospital.




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Computer vision helps scientists study lithium ion batteries

New machine learning methods bring insights into how lithium ion batteries degrade, and show it's more complicated than many thought.