Patients with a primary care record of infection with the virus that causes Covid-19 (SARS-CoV-2 coronavirus) reported 62 symptoms much more frequently 12 weeks after initial infection than those who hadn’t contracted the virus.

Covid Origin Studies Say Evidence Points to Wuhan Market

Evidence indicates that Sars-Cov-2 was present in live mammals that were sold at Huanan market in late 2019. They say it was transmitted into people who were working or shopping there in two separate "spillover events", where a human contracted the virus from an animal.

The World Health Organization on Saturday declared the unprecedented monkeypox outbreak that has spread around the world a public health emergency, a decision that will empower the agency to take additional measures to try to curb the virus’s spread.

Those with SARS-CoV-2 are often advised to isolate for only a few days. But evidence is mounting that some people can continue to pass on the virus for much longer.

Psychologists, neuroscientists and philosophers are trying to understand humor

A visual method to show that the areas of two annuli with the same chord length are the same regardless of inner and outer radii.

The mountain fortress of Rabana-Merquly in modern Iraqi Kurdistan was one of the major regional centers of the Parthian Empire, which extended over parts of Iran and Mesopotamia approximately 2,000 years ago.

In “A Divine Language,” Alec Wilkinson writes about the year he spent trying to learn the algebra, geometry and calculus that had confounded him decades before.

The unique geologic conditions at the long-lost site preserve paleontological treasures that could help shed light on one of the biggest extinction events in Earth's history.

The CEO of the biggest power company in the US had a problem. A Democratic state senator was proposing a law that could cut into Florida Power & Light’s (FPL) profits. Landlords would be able to sell cheap rooftop solar power directly to their tenants – bypassing FPL and its monopoly on electricity.

In the days after the mega-telescope started delivering data, astronomers reported exciting new discoveries about galaxies, stars, exoplanets and even Jupiter.

The legacy of Hubble, which redefined our view of the cosmos, is still being written 

Observing the birth of the first stars and galaxies has been a goal of astronomers for decades, as it will help explain how the universe evolved adter the Big Bang.

Deep-field images of “empty” regions of the sky from Webb and other space telescopes are revealing more of the universe than we ever thought possible

Astronomers have analyzed archive data for powerful cosmic explosions from the deaths of stars and found a new way to measure distances in the distant Universe.

the human-occupied submersible Alvin made history when it successfully reached a depth of 6,453 meters (nearly 4 miles) in the Puerto Rico Trench, north of San Juan, P.R. This is the deepest dive ever in the 58-year history of the storied submersible.

The discovery has potential for developing errorless quantum computers.

Traditional silicon-based solar cells are completely opaque, which works for solar farms and roofs but would defeat the purpose of windows. However, organic solar cells, in which the light absorber is a kind of plastic, can be transparent.

Who “invented” sliced bread? How did the microwave oven come to be? And what genius gave us the spork?

After water, concrete is the most widely used substance on Earth. With applications from housing and industry to coastal defense and infrastructure, concrete and cement are at the cornerstone of life, quite literally.

The tech giants are paying millions of dollars to the operators of clickbait pages, bankrolling the deterioration of information ecosystems around the world.

Cocoa flavanols have previously been found to lower blood pressure and arterial stiffness as much as some blood pressure medication. However, how effective flavanols are in everyday life in reducing blood pressure has remained unknown.

Just because you don't exercise regularly during the week doesn't mean you can't make it up on the weekend. 

Your brain is the most important organ in your body. It keeps your heart beating, lungs breathing and all the systems in your body functioning.

That’s why it’s essential to keep your brain working in optimum condition with a healthy diet.

A new study in the New England Journal of Medicine finally puts to rest the notion that vitamin D alone will help prevent bone fractures in the general adult population.

One geneticist is determined to piece together the causes.

Noise pollution is more than a nuisance. It’s a health risk.

The attacks are being blamed on Japanese macaques. However, while they are a common sight in large parts of the country, incidents like these are unusual.

They’ve roamed free for hundreds of years, but is that freedom harming the ecosystem they call home?

It turns out we can thank our existence of their altered metabolism.

Natural History Museum scientists seek to unlock mysteries of deep sea but some fear activity will disturb diversity of the depths

Rapid eye movement, or REM sleep, is the final phase of the four stage cycle that occurs during sleep. Unlike non-REM sleep, the fourth phase is characterized by an increase in brain activity and autonomic nervous system functions, which are closer to what is seen during the awakened state.

Examining a massive influence on our health: the environment.

Under a full electrification scenario in the US, 4.4 million hectares of land could be saved (mostly in Brazil, China and India), and the CO2 emissions of all gas cars in the US could be halved.

Some of the cities enjoying population boom are among those gripped by a ferocious heatwave and seeing record temperatures

In the Midwest, fertile soil is being excavated in pursuit of fossil fuels, while communities suffer.

Scientists say overgrazing deteriorates range-lands’ ability to store climate-warming carbon, while the livestock industry claims feeding animals improve the land.

Youth activists involved in End Fossil: Occupy! We can’t keep sitting in school, pretending everything is all right, and studying as if the planet wasn’t on fire

Thirty years ago, a bold plan was cooked up to spread doubt and persuade the public that climate change was not a problem. The little-known meeting - between some of America's biggest industrial players and a PR genius - forged a devastatingly successful strategy that endured for years, and the consequences of which are all around us.

A new report has identified the 10 financial actors with the most influence on the fossil fuel economy and outlines the decisive role they can play in helping de-carbonize our future.

The party has largely moved beyond denying the existence of climate change but continues to oppose dramatic action to halt it, worried about the short-term economic consequences.

The current heat waves should be a wake-up call—we have to get serious about climate change.