Scientific American

Our conscious awareness may be governed by a structure deep in the brain

For a long time, the Kakeya conjecture, which involves rotating an infinitely narrow needle, kept mathematicians guessing—until now

A long-simmering disagreement over the universe’s present-day expansion rate shows no signs of resolution, leaving experts increasingly vexed

According to new simulations, many, even most, planets get ejected from their star early in their history

The Trump Administration has fired four leaders and thousands of employees at the National Institutes of Health in “one of the darkest days”

The privately funded Fram2 mission is the first ever to take astronauts into polar orbit—and the latest sign of a “new normal” for human spaceflight