Articles by Harder, Ben
The one-hour dimming of dozens of cities is a protest against wasted energy and light.
Erectile dysfunction can be a sign that a man's life is at risk.
Two Bush administrations, two widely different takes on species said to be in trouble.
I think I've got poor face recognition. How common is this condition called prosopagnosia?
The ecological dangers and health effects of a bright night are becoming more apparent.
The dangers of a bright night are becoming more apparent.
The future of American science may depend on the high school students who competed in the Intel STS.
Why, in Kenya, are the "people of the milk" fighting against people they call "weeds"?
I talked with WTOP about artificial light and cancer.
The malignancy is more common in well-lit communities than in naturally dark ones.