SAD is Seasonal Affective Disorder, and it actually impacts more of us than we think.
According to a recent article in the Spokesman Review online, it isn't just some goofy idea brought up here from transplanted Californians who can't handle Northwest cold and temps...
There are several things to keep in mind when choosing which sunscreen to use and specifically which SPF (or Sun Protection Factor) is right for you. The FDA says SPF is related to the amount of solar exposure you get. Therefore the ideal SPF may differ depending on skin tone, the time of day, the amount of sunscreen you put on, and the amount of times you reapply...
Amateur astronomers may want to dust off their telescopes Tuesday because Venus will pass in front of the sun in an event that NASA says only comes once every hundred years or so.