Most animals, including humans, carry an internal lunar clock, tuned to the 29.5-day rhythm of the Moon. It guides sleep, reproduction and migration of many species. But in the age of artificial light ...

Using Einstein's theory of general relativity, physicists found that clocks on the moon would run 56 microseconds faster than clocks on Earth. That finding will help future lunar missions navigate.

The moon’s south pole is home to permanently shadowed craters, and now researchers are proposing that they could be home to ...

Time dilation is a funny thing. We think of time as an immutable, shared reality, but you can technically observe time dilation simply by comparing the ticking of two atomic clocks, one at sea-level ...