I have to admit, this week's What's Up With That? query truly had me stumped. But it turns out blue streetlights are explainable, if not ideal.

Our editors tested and reviewed dozens of lip balms. Shop the best lip balms for dry, chapped lips from brands like Aquaphor, Summer Fridays and Rhode.

How Many Politicians Are Needed To Screw Up A Light Bulb? Environmental activism will force us to use lights that aren't as safe, and that don't work as well as traditional bulbs.

Get the latest news headlines and top stories from NBCNews.com. Find videos and news articles on the latest stories in the US.