According to Einstein, time is not fixed - it changes depending on speed and gravity. On Mercury, closer proximity to the Sun slows time ever so slightly. This episode explores gravitational time ...

Scientists have spent decades trying to understand how gravity operates at its most basic scale. However, no theory has come close to fully explaining it. Now, though, a new theory could finally give ...

The world’s best clocks may be sensitive to an odd mix of quantum and relativistic effects that would stretch time and test the boundaries of physics ...

Bottom line: For decades, physicists have been trying to solve one of the greatest mysteries in science: how gravity operates at the smallest scales governed by quantum mechanics. While we have ...

When you follow Einstein’s math step by step, you enter a world where intuition starts to break down. His equations of relativity reveal that time slows down near massive objects, space itself bends ...

If gravity arises from entropy, scientists could unite Einstein's general relativity with the quantum realm while shedding light on dark matter and dark energy. A new recipe for gravity could help ...