Water and sunlight the formula for sustainable fuel

"It's the beginning of a whole suite of possibilities, such as creating a highly efficient fuel, or to trapping atmospheric carbon." Professor Pace said large amounts of hydrogen fuel produced by artificial photosynthesis could transform the economy. "That carbon-free cycle is essentially indefinitely sustainable. Sunlight is extraordinarily abundant, water is everywhere – the raw materials we need to make the fuel. And at the end of the usage cycle it goes back to water," says he.

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Solar fuels as generated by nature

"Synthetic solar fuels open up wide-ranging possibilities for renewable energy technologies, in particular for the transport and infrastructure sectors, which are still reliant on fossil fuels," says Professor Wolfgang Lubitz, Director at the Max Planck Institute for Chemical Energy Conversion. "An efficient light-driven, water splitting catalyst based on common metals such as manganese would represent huge progress here. The insight gained into nature's water splitting enzyme through this research has laid the foundations for such developments."
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Is there any place in the Universe where there's truly nothing?

What are the properties of nothing?
Even in the gulfs of intergalactic space, there are hundreds or thousands of particles in every cubic meter. But even if you could rent MegaMaid from a Dark Helmet surplus store, and vacuum up those particles, there would still be wavelengths of radiation, stretching across vast distances of space.
There's the inevitable reach of gravity stretching across the entire Universe. There's the weak magnetic field from a distant quasar. It's infinitesimally weak, but it's not nothing. It's still something.
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