A former NASA scientist has released an informative animated video that shows how fast Earth is rotating relative to the Sun, the Milky Way galaxy, and the Cosmic Microwave Background. The simple ...

Earth rotates through an entire day as captured in this animation of 22 still images taken on Sept. 17, 2015 by NASA's Earth Polychromatic Imaging Camera (EPIC) camera on the Deep Space Climate ...

Earth's rotation is randomly speeding up, and nobody is quite sure why. These speedups, which have occurred several times over the last few years, haven't had any effect on daily life, but they also ...