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Watch the moon cover up the blue giant star Spica on July 13
One of the most interesting events in visual astronomy, and certainly the fastest, occurs when the moon occults a star. The moon's ... and even such a brilliant blue diamond will be partly ...
7 most amazing stars images shared by NASA
The mighty blue giant AG Carinae is one of the brightest stars in our Milky Way galaxy. It shines with the brilliance of 1 ...