Philly snow updates: City offices, school buildings closed Tuesday as snow emergency continues; updated snowfall totals; bitter cold ahead

What you should knowIn Philadelphia, 9.3 inches of snow fell, the most in a decade. And it's going to stick around for a ...

How does Olympic speedskating work? Events, format, rules

Speedskating has been an event at the Winter Olympics since the inaugural Games. Learn more about the format and how it works ...