Scientifc America

Reduced population immunity resulting from COVID precautions, and a phenomenon called viral interference, may have influenced this flu season’s early start

Nearly three years into the pandemic, COVID’s mortality burden is growing in certain groups of people

The first flight test of the world’s most powerful rocket will send an uncrewed spacecraft to lunar orbit and back

Could a sighting by researchers in Uganda’s Kibale National Park be a clue that chimps share just for the sake of sharing?

Around the world, researchers are betting that beamed power from space could be the next big thing for clean energy on Earth

You may have endured a frost quake, pogonip or Saskatchewan screamer without knowing it. Take our tour of weird weather terms to find out

  Some voting districts are tilted intentionally toward one party or another—a factor in the midterms. Geometry plays a critical role in gerrymandering

Voters chose to protect abortion rights in all five states with abortion-related measures on their ballots 

November hurricanes and tropical storms such as Nicole are relatively rare, but they can—and do—form

Luiz Inácio Lula da Silva says he’ll stop illegal destruction of rainforests allowed under former president Jair Bolsonaro. Will Brazilians support him?

As the COP27 climate summit begins, emissions reduction pledges are still far behind where they need to be to meet the goals to limit global warming

Mathematician Frank Ramsey showed how to discover coherent patterns among a multitude of number groupings

Growing swarms of spacecraft in orbit are outshining the stars, and scientists fear no one will do anything to stop it

Your questions answered about what RSV is, how it spreads, what vaccines are on the way and who is most at risk

A century after archaeologist Howard Carter’s momentous discovery of Tutankhamun’s tomb, questions and controversy still swirl around Egypt’s most famous king

A trial of how government, NASA and local officials would deal with a space rock headed toward Earth revealed gaps in the plans

Crowd management experts explain the factors that enabled Seoul’s deadly crowd crush

SpaceX and the entrepreneur Jared Isaacman are pursuing a plan to rescue the iconic Hubble Space Telescope from a fiery plunge into Earth’s atmosphere

Scientists demonstrate that crows are capable of recursion—a key feature in grammar. Not everyone is convinced

FDA Chief Medical Officer Hilary Marston explains the importance of getting a booster shot, considers why so few people have gotten them and answers other questions