Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

What makes plants grow to a certain size? From the tiniest cells to whole leaves, roots, and stems, growth has to be ...

Scientists have long held that the universe is expanding at an ever-increasing rate, driven by a mysterious but measurable ...

College Football Playoff board of managers chairman Mark Keenum, who also serves as president of Mississippi State, revealed ...