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Space looks very dark from Earth. But does the solar system, and the universe for that matter, have an area that's the ...

An expanding universe complicates this picture just a little bit, because the universe absolutely refuses to be ...

Dr. Pipher is a clinical psychologist and writer in Lincoln, Neb., and the author, most recently, of “A Life in Light: Meditations on Impermanence.” This essay was originally published in December ...

It is difficult not to join the chorus of people bemoaning the 4:15 p.m. sunsets we have been experiencing in the Northeast. Even the most hardened New Englanders seem to agree, very few people like ...

A couple of weeks ago I sat in the complete darkness of Ape Cave with a group of young men as part of youth activity. As we talked about the challenges of trying to walk in absolute darkness, it ...