When you go outside on a clear, moonless night, you can see not only lots of stars but also the black space between them—literally space, in this case. Given that you can see stars and that the sky is ...

The darkness of the night sky results from the finite, expanding universe, where light from distant stars has not yet reached ...

Have you ever wondered why the night sky is dark? Doesn’t seem like much of a brainteaser, does it? Everyone knows the sky darkens at night because the sun sets … or more accurately, because our part ...

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Bring a red light and snacks and get comfortable as you take in these celestial wonders. April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded ...

SEQUIM — International Dark Sky Week, billed as “a worldwide celebration of the dark and natural night” by Dark Sky International, will be celebrated today through April 28. During the past century, ...