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Water, water, everywhere. But will we always have enough to drink? Wash away our waste?

Dressings for your dish. | Photo by Michael Rosenstein, CC.

You may not know his name, but chances are that you have seen his work. Brooklyn-born artist Charles R.

You may not know his name, but chances are that you have seen his work.

A heartbreaking, out-of-the-gate failure of Russia’s sample return mission early this year created a wide circle of disappointment. For Russia, it was supposed to be a "cavalry charge" toward a hyperambitious goal that would have redeemed a quarter-century of interplanetary impotence but instead became a cosmic humiliation when the craft died shortly after liftoff. For planetary science, it meant that the composition of the Martian moon Phobos remains speculative and its origins still undetermined

The biggest business risk that everyone overlooks is the one that starts at home. Here's what to do if your marriage cracks. Risk?

The biggest business risk that everyone overlooks is the one that starts at home. Here's what to do if your marriage cracks.

TOKYO (Reuters) - Tokyo Electric Power Co, the operator of the tsunami-crippled Fukushima power plant, shut its last operating nuclear reactor on Monday for regular maintenance, leaving just one running reactor supplying Japan's creaking power sector. Japan has 54 reactors, but since the tsunami last March triggered the world's worst nuclear crisis in 25 years at the Fukushima plant, it has been unable to restart any reactors that have undergone maintenance due to public safety concerns. Tepco said it shutdown the No.6 reactor at its Kashiwazaki Kariwa plant, the world's biggest nuclear power plant, raising concerns about a power crunch this summer when electricity demand peaks due to hot weather.

TOKYO (Reuters) - Tokyo Electric Power Co, the operator of the tsunami-crippled Fukushima power plant, shut its last operating nuclear reactor on Monday for regular maintenance, leaving just one running reactor supplying Japan's creaking power sector. Japan has 54 reactors, but since the tsunami last March triggered the world's worst nuclear crisis in 25 years at the Fukushima plant, it has been unable to restart any reactors that have undergone maintenance due to public safety concerns. Tepco said it shutdown the No.6 reactor at its Kashiwazaki Kariwa plant, the world's biggest nuclear power plant, raising concerns about a power crunch this summer when electricity demand peaks due to hot weather.

By Ron Cowen of Nature magazine A chemical analysis of lunar rocks may force scientists to revise the leading theory for the Moon's formation: that the satellite was born when a Mars-sized body smacked into the infant Earth some 4.5 billion years ago. If that were the case, the Moon ought to bear the chemical signature of both Earth and its proposed 'second' parent.

You can almost hear the law of unintended consequences at work among the flora and fauna of northwestern New Mexico. [More]

What are the structural differences in the brain between animals that are self-aware (humans, apes) and other vertebrates? [More]

On Tuesday, March 19 th , Alan Jacobs posted a technology article for The Atlantic titled Jobs of the Future: A Skeptic’s Response . In the article, he voices his doubts that a skillset promoted by the internet and social networking would usher in a new wave of future employment: Where are these jobs that will require such rapid “searching, browsing, assessing quality, and synthesizing the vast quantities of information”?

Sleep has many functions--including facilitating learning. [More]

A mouse’s nerve cell has broken open to showcase vibrantly colored sacs, which house its neuro transmitters, the chemical messengers neurons use to communicate with one another and with other cells. [More]