Why you'll never see a green star (but an alien might!)

If our eyes were just a little different, we might see green when looking up at our sun. Because they aren't, we'll never see a green star no matter where we look. However, alien eyes, when they come to our solar system — or if they're already here! — might be able to see green twinkling, and here's why. » 1/14/13 7:20am 1/14/13 7:20am