The summer solstice marks the start of astronomical summer and the longest day of the year. Here we explore when the summer ...

Find out when Presidents Day 2026 will be observed in the United States and what the holiday means. Presidents Day falls on ...

Martin Luther King Jr. Day falls on the third Monday in January. At times, it coincides with Inauguration Day. Here's what to ...

Here's how the astronomical phenomenon influences our planet—from the length of our seasons to the way Earth moves through ...

The next full moon will be on Sunday, Feb. 1. 5:09 p.m. (EST). It will officially reach its full moon phase at 5:09 p.m. EST ...