For nearly a century, astronomers have watched galaxies spin and the universe expand in ways that visible matter alone cannot ...

From the fall of an apple to the glow of the farthest known star, gravity quietly choreographs almost everything that happens ...

Mind = blown.

Legend has it that Isaac Newton had the moment of inspiration that would lead to his theory of gravity when, on a warm afternoon, he saw an apple fall from a tree and wondered why it should fall down ...

Hula hooping is so commonplace that we may overlook some interesting questions it raises: 'What keeps a hula hoop up against gravity?' and 'Are some body types better for hula hooping than others?' A ...

Physics pioneer Dr. Marlan Scully explores how century-old ideas are now lasers, quantum computers and detectors that can find ripples in spacetime.