In a rare and surprising move, the FDA has issued a “Refusal to File” letter for Moderna’s mRNA-1010 influenza vaccine.

For nearly a century, astronomers have known that the universe is expanding. Most galaxies are carried outward with the flow ...

Fossilized footprints are among the most abundant traces dinosaurs left behind. But linking a track to its corresponding ...

Previous observations of stars whipping around an unseen mass—especially a bright star called S2—have pointed to an object ...

Typically, from what astronomers have gathered thus far, star systems follow a tidy logic: small, rocky worlds huddle close to the warmth of their star, while massive gas giants bloat up in the colder ...

The record reveals dramatic swings. Three dry intervals brought less than 700 millimeters of rain per year, while two wet ...

Autism has always been framed as a condition that mostly affects boys. Yet after tracking more than 2.7 million people born ...

In 1922, archaeologists uncovered the intact tomb of Tutankhamun, exposing thousands of artifacts placed around the young Egyptian king for burial. Among the gold ornaments, chariots and ritual items ...

On India’s railways, stowaways are not limited to ticketless passengers. Some arrive without limbs, luggage or much interest in timetables.

For 12,400 years, the cave’s arid air preserved two small scraps of elk hide stitched together with twisted fiber. These ...

Around 2400 BC, the people who had built Stonehenge and other massive Neolithic monuments effectively vanished. Previous ancient DNA studies showed that they were replaced by newcomers with Steppe ...

As Valentine’s Day approaches, finding the perfect words to express your feelings for that special someone can seem like a ...