Science
The Pope tackles climate change in new encyclical
June 18, 2015The Pope calls for serious and immediate action to address climate change and other environmental crises.
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Astronomers discover galaxy far, far away, and it’s baby blue
May 8, 2015It's among the universe's first generation of galaxies, from 13.1 billion years ago.
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Nuclear fallout, plastics mark human impact on planet, scientists say
May 4, 2015We have entered a new geological era, in which human action is changing the physical world around us.
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As California drought deepens, water debate sharpens
April 30, 2015As California struggles to meet new water use restrictions, the governor is urging a sharp increase in fines for the worst violators.
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“Peace and planet” marchers at UN: “No more nukes!”
April 29, 2015It was a picture perfect Sunday for a peaceful march against the most violent instruments of war: nuclear weapons.
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