Stories by Jackie Flynn Mogensen

President Donald Trump and other Republican officials had criticized this chapter as biased against fossil fuel companies

The president called for the combined measles, mumps and rubella (MMR) vaccine to be split into separate shots, despite decades of research showing that the MMR vaccine is safe and effective

Dogs are known to recognize and respond to human facial expressions, but a new study shows how deeply they understand our mood

Fauci previously served as the chief medical officer to President Joe Biden and led the U.S. COVID pandemic response effort during the first Trump administration

It may be time to rethink our relationship with the sweet stuff

Most of the world’s population carries at least a little Neanderthal DNA

The Arctic is heating faster than the rest of the planet. New data illustrate how dire that is

A high-profile court case is calling attention to this rare and understudied condition

The U.S. has been pummeled with heat waves this summer. Here’s how hot overnight temperatures can get in the way of a good night’s rest—in three charts

Many of these structures date to around C.E. 100–300, during the time of the Aquiry civilization, and may have been used for ceremonial purposes

If approved, this deal would give SpaceX hundreds of acres that are currently part of the Lower Rio Grande Valley National Wildlife Refuge in exchange for private land

There are many observations of animals behaving oddly during eclipses, but the reason may have nothing to do with the sun and moon

The behavior could be a strategy to help younger orcas feed, or it may just be for their own amusement, researchers say

A hormone produced by the thymus helps tamp down age-related inflammation, a new study in mice found

Wildfire smoke may be as much as 10 times more dangerous than other forms of air pollution, research suggests

These findings challenge a long-held belief about weapons found in female burial sites

The new species, Colobus congoensis, may already be endangered

Skygazers are in for a treat on August 12, as one of the most spectacular meteor showers coincides with a total solar eclipse

Scientists have long suspected that this star cluster was a hotspot for a certain kind of black hole. But for decades, they had been unable to spot any

Record-breaking heat waves are beginning to blur together—here’s why and what’s making them so unbearable

This one-ton elephant seal has gone viral for smashing into cars and infrastructure, but biologists have a more poignant explanation for his behavior

The sport supplement is popular among health influencers and athletes, who say creatine can help build stronger muscles and sharper brains—but is it legit?

Both Neanderthals and Homo sapiens may have shared tools and behavioral practices, new research suggests

Sea surface temperatures in late June reached nearly 70 degrees Fahrenheit on average, shattering records