Water was plentiful in the early universe

Astronomers have long held that water—two hydrogen atoms and an oxygen atom—was a relative latecomer to the universe. They believed that any element heavier than helium had to have been formed in the cores of stars and ...

A new spin on Saturn's peculiar rotation

Tracking the rotation speed of solid planets, like the Earth and Mars, is a relatively simple task: Just measure the time it takes for a surface feature to roll into view again. But giant gas planets Jupiter and Saturn are ...

Prehistoric stone tools bear 500,000-year-old animal residue

Some 2.5 million years ago, early humans survived on a paltry diet of plants. As the human brain expanded, however, it required more substantial nourishment - namely fat and meat - to sustain it. This drove prehistoric man, ...

New optical materials break digital connectivity barriers

From computers, tablets, and smartphones to cars, homes, and public transportation, our world is more digitally connected every day. The technology required to support the exchange of massive quantities of data is critical. ...

Teacher unconscious prejudices put girls off math, science

It's a fact: Women are vastly underrepresented in the fields of computer science, engineering, and mathematics. But less clear are the trajectories—academic and otherwise—that lead young women toward other professions. ...

page 8 from 38