MIT scientists have develped new catalysts to produce Hydrogen & Oxygen from water & solar energy:-

'Major Discovery' Primed To Unleash Solar Revolution: Scientists Mimic Essence Of Plants' Energy Storage System
[Rep]

An independent investigation into the MIT claim is here:-

The Oil Drum | Local Scientist Splits Water, Saves World, Gets On TV

So, as Besoeker pointed out somewhere, the detail is important.
[Rep]