Look up on a clear sunny day and you will see a blue sky. But is this the true color of the sky? Or is it the only color of the sky? The answers are a little complicated, but they involve the ...

MINNEAPOLIS -- Wednesday will be a seasonable day under a sunny sky in the Twin Cities. The Twin Cities should see an afternoon high around 51. Up north, more cloud cover will make things a little ...

So first things first: when we see a blue sky on a sunny day, what are we seeing? Are we seeing blue nitrogen or blue oxygen? The simple answer is no. Instead the blue light we see is scattered ...