In particular, try the public beach at Jumeirah Beach Walk or a sky high bar with a view over the sea, such as Pure Sky Lounge at Hilton Dubai Jumeirah or the Observatory at Dubai Marriott Harbour Hotel.

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But do not confuse the ISN with pure blue-sky research.

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The sky was still pure blue above, and then at the horizon tinted some other color, a rosy yellow that went away when you looked at it.

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They are waiting for us in that realm of pure blue, that mysterious place where the earth meets the sky.

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