How much open space does an urban area need?

Around 97% of all metropolitan areas in the United States have insufficient open space, according to a new study published in the Journal of the Association of Environmental and Resource Economists. In the paper "Open Space ...

EPA moves to restore rule on mercury from power plants

The Environmental Protection Agency on Friday reaffirmed the basis for a rule that requires "significant reductions" in mercury and other harmful pollutants from power plants, reversing a move late in former President Donald ...

Spotting faint dwarf galaxy Donatiello II

Right in the middle of this image, nestled among a smattering of distant stars and even more distant galaxies, lies the newly discovered dwarf galaxy known as Donatiello II. If you cannot quite distinguish the clump of faint ...

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