Einstein's theory of gravity predicts that a rotating body, such as Earth, partially drags inertial frames along with its rotation. Scientists suggest a novel approach to measuring what is referred to ...

We've been through the first few episodes of our crash course on general relativity, and came out alive! But it's officially "time" for CURVED spacetime. Join Gabe on this week’s episode of PBS Space ...

The methods of analyzing space, time and motion described in the previous several lectures are called kinematics. Galileo rightly deserves much of the credit for developing these methods. [Although ...