Yes, the darkest day of the year is here, but that means brighter days are ahead. Sunday is the shortest day of the year north of the equator, where the solstice marks the start of astronomical winter ...

Shortest path algorithms sit at the heart of modern graph theory and many of the systems that move people, data, and goods around the world. After nearly seventy years of relying on the same classic ...

Yes the darkest day of the year is here, but that means brighter days are ahead. Sunday is the shortest day of the year north of the equator, where the solstice marks the start of astronomical winter.

This weekend, we officially welcome winter with the winter solstice at 10:03 a.m. EST on Sunday. This marks the shortest day and longest night of the entire Opinion: How President Trump ruined ...

WASHINGTON — The winter solstice, the astronomical start of winter, is this weekend. For those north of the equator, the solstice on Sunday, Dec. 21, marks the shortest day and longest night of the ...