“Twinkle,twinkle quasi-star. Biggest puzzle from afar. How unlike the other ones. Brighter than a billion suns. Twinkle, twinkle, and quasi-star. How I wonder what you are.” -George Gamow One of the most attractive classes of objects in the entire sky is one that’s invisible to the naked eye,yet appears brighter than anything else in…
Source: scienceblogs.com