A man in Seattle wears a mask as wildfire smoke descends on the city in September of 2020.

Four Ways to Protect Yourself From Harmful Air Pollution Caused by Wildfires

Awareness about exposure, high-quality masks and air filters can help protect you from dangerous pollutants in smoke

Candy-size molecular models, about the diameter of Nerds candy, can help students with blindness to learn chemistry.

Gummy Candy-Like Models Can Help Students With Blindness Study Chemistry

Tiny shapes made from gelatin and resin may empower children to learn science

An illustration of antibodies responding to an infection by SARS-CoV-2, the virus that causes Covid-19

The Next Step in Covid-19 Vaccines May Be Through the Nose

Intranasal vaccines may help prevent transmission and hinder the evolution of new viral variants

Since scientists haven’t yet found evidence that the vaccines provide mucosal immunity, someone who is vaccinated and has no symptoms of illness may be carrying the live SARS-CoV-2 virus and spreading it to others when they cough, breath or sneeze.

Why It's Important to Still Wear a Mask After Covid-19 Vaccination

Vaccinated people should still wear masks around unvaccinated individuals to prevent transmission

Intense visions and confusion about the reality of hospitalization can be especially scarring, leaving patients with intrusive thoughts, flashbacks and vivid nightmares. If such responses persist for more than one month and cause functional impairment or distress, it may be diagnosed as PTSD.

Why PTSD May Plague Many Hospitalized Covid-19 Survivors

Scientists warn about the likelihood of post-traumatic stress disorder for patients discharged from the intensive care unit

New analysis of the fossilized tooth plaque of 16 ancient Mediterraneans reveals that they consumed foods imported from Asia—like turmeric and banana, pictured—a thousand years earlier than researchers previously thought.

Ancient Mediterranean People Ate Bananas and Turmeric From Asia 3,700 Years Ago

Fossilized tooth plaque reveals a diverse and exotic palette reflected in the region's modern cuisine

The Parkes Telescope in Australia

Astronomers Discover Mysterious Radio Signal From Proxima Centauri

Scientists searching for aliens are trying to understand the signal’s origins

Archaeologists completing excavations on Fischer-Hallman Road

Remnants of Woodland Iroquois Village Discovered in Ontario

Excavations have unearthed 35,000 artifacts, including carbonized corn, ceramics and stone tools

As countries in the Northern Hemisphere enter flu season, experts are looking to patterns from Southern Hemisphere nations as a source of cautious optimism.

What to Expect When Covid-19 and the Flu Season Collide

Experts weigh in on the necessary steps to ensure a mild flu season during the pandemic

The sun sets behind the Manhattan Bridge and One World Trade Center in a haze created by smoke from the west coast wildfires reaching the east coast on September 15, 2020 in New York City, according to Getty Images.

West Coast Wildfire Smoke Reported as Far East as the Netherlands

Hazy skies covered the United States and parts of Europe this week as jet streams pushed fumes eastward

Starlet anemone grow tentacle arms based on how much food they intake.

These Sea Anemones Grow Limbs When They Eat

The starlet sea anemone is the first known species to translate food into limbs

Refugees established communities in displaced persons (DP) camps across Germany.

The Little-Known Story of World War II's 'Last Million' Displaced People

A new book by historian David Nasaw tells the story of refugees who could not—or would not—return home after the conflict

On August 18, 2020, flood waters threatened the Leshan Giant Buddha following heavy rains in Leshan in China's southwestern Sichuan province, where thousands of residents have been displaced by rising waters.

Flooding Endangers World's Largest Buddha Statue

Rising waters in China dampened the toes of the Leshan Giant Buddha for the first time since 1949

Studying the cat's bone structure revealed it was probably a domesticated cat, rather than a wildcat, swamp cat or sand cat.

Scientists 'Digitally Unwrap' Ancient Egyptian Animal Mummies

Detailed scanning technology provides a detailed look at a kitten, cobra and bird

The chocolate factory in Olten, Switzerland, quickly fixed its ventilation problem and resumed production.

Last Week, This Swiss Town Was Briefly Showered in Cocoa Powder

A broken ventilation system at a Lindt factory spewed crushed cocoa nibs into the air

Bishop of Hull Alison White blesses a statue of Aslan, a character from C.S. Lewis' The Chronicles of Narnia, at St. Mary’s Church in Beverley, East Yorkshire.

Stone Sculptures of 'Chronicles of Narnia' Characters to Adorn Medieval Church

Statues of Aslan, the White Witch and other mythical beings will replace weathered carvings at St. Mary's Church in Yorkshire

Even with lockdown measures through 2021, the decline in greenhouse gas emissions will only cool the planet 0.018 degrees.

Drop in Emissions During COVID Will Have 'No Effect' on Climate

Heavy investment in renewable energy is mandatory to significantly cool the planet, scientists say

A fox in Germany (not pictured here) spirited away more than 100 shoes.

Sole-Searching, Shoe-Swiping Fox Caught in Germany

The crafty urban dweller built a colorful collection of footwear dominated by Crocs

To understand the ozone's composition, scientists analyzed sunlight that filtered through the Earth's atmosphere and reflected off the moon.

Scientists Use Moon as Mirror in Hunt for Extraterrestrial Life

The Hubble Telescope captured reflections of ultraviolet light to test for ozone layers

A high-resolution survey scan of U-Boat U-47 shows a remarkably well-preserved wreck.

Wreck of U-Boat Sunk Off English Coast During WWI Explored for the First Time

Researchers used deep-sea scanning to learn more about the German submarine's history

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