Scientific American.com

An Alabama court ruling that human embryos outside the uterus should be regarded as children has raised concerns among doctors and scientists about the future of the fertility treatment in vitro fertilization

Predicting what the sun will look like during a total solar eclipse is a helpful exercise for scientists in the long quest to understand how our star works

From the time I learned to read, I have experienced a form of mental closed-captioning called ticker-tape synesthesia

From cloud coverage to clear skies, here’s up-to-date weather conditions expected along the path of April 8’s total solar eclipse

As much as 85 percent of U.S. emissions of sulfuryl fluoride—a rare greenhouse gas and common pesticide used to treat termites—comes from California

An earthquake scientist discusses what we know about Taiwan’s magnitude 7. quake so far and what may happen next

Kate Middleton, Princess of Wales, announced she had cancer last month. Many cancer patients undergo surgery, chemotherapy and other treatments in combination

A marine scientist discusses the problem of plastic pollution and her hopes for an international treaty to tackle it

Eclipses bring the future—or at least a tiny sliver of it—into sharp focus

Ancient Egyptian mummies reveal what diseases afflicted people in the great civilization, as well as the protective role the Nile could play

Inspiration, creativity, discovery—all of these things start from a place of not knowing, and these researchers know how to navigate those uncertainties.​

It is imperative that we protect science education from “intelligent design” and other alternative “theories”

Eclipses can affect animals, and biologists are preparing to see what happens during totality on April 8.

A team of researchers has an ambitious plan to capture the 2024 total solar eclipse like never before.

Unique patterns of neuron activation help tiny birds catalog thousands of scattered food caches

With a new EPA rule aiming to reduce carbon emissions from the biggest class of trucks in the U.S., companies are experimenting with overhead cables and wireless road charging

A person tested positive for avian influenza after being exposed to cows thought to be infected with the virus. It's the second time a human has been infected with H5N1 in the U.S.

We asked a professional astro photographer and eclipse chaser how to take the best photographs and videos of a total solar eclipse.

You’re going to want to guard your eyes from the sun using legitimate protective gear

Giant bubbles erupting across this red supergiant star’s surface could solve a lingering astrophysical mystery