The sky was dark, and he had parked the car on a quiet street.

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The asteroid's position was very close to the sun, so astronomers had to observe it when the sky was dark.

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The sky was dark.

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The UK's first dark sky park at Galloway forest was established after being granted the Dark Sky status by the IDSA in 2009.

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The next morning, Steve, in my hotel room, I threw open the draperies, and it was so grey and dark looking out at the Beijing sky, I thought it was raining.

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It was still dark outside when I arrived but the sky was lit up by an incredibly large moon glowing over the ballpark -- a baseball cathedral transformed into a church thanks to a 50-by-50-foot altar in centerfield.

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The blue layer of sky had given way now and was turning dark like the rest.

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The sky was gray near the tops of the mountains, as gray as a dark day in winter.

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