The first sign of something strange emerged on August 6, 1967, in a squiggly stretch of data occupying less than a quarter-inch of Bell Burnell’s readouts. “I logged it with a question mark ...

Bizarre Spinosaurus makes history as first known swimming dinosaur. A newfound fossil tail from this giant predator stretches our understanding of how—and where—dinosaurs lived.

For decades, we've used body mass index (BMI) to infer the basic health of an individual. However, BMI fails to account for factors such as athleticism, cholesterol levels, and blood pressure.

Like other bacterial bioluminescence, milky seas have a steady, even gleam “like the glow-in-the-dark plastic stars you can buy your kids,” according to a 1980 U.S. Navy sighting.

Icon depicting the Emperor Constantine and the fathers of the Council of Nicaea of 325 with the Greek text of the Nicene-Constantinopolitan Creed of 381 in its liturgical form.