It's September. By some definitions, that means fall has begun. For others, it is still weeks away. Here's a guide on all things autumnal.

Earth wobbles on its axis like a spinning top, a motion called precession. This wobble takes about 26,000 years to complete one full circle. Different stars have served as the North Star throughout ...

As Earth moves through space, it wobbles slightly. A team of researchers from the Technical University of Munich (TUM) and the University of Bonn has now succeeded in measuring these fluctuations in ...

On Sunday, Nov. 2, we head back into Standard Time and say goodbye to Daylight Saving Time until March 8, 2026.