ManganeseOxide
Latest
Curiosity finds evidence that Mars was once rich in oxygen
Mars may have had a much more Earth-like atmosphere rich in oxygen, according to JPL's Curiosity team. Using its laser-firing instrument in the Gale Crater, the intrepid rover found rocks with manganese oxide, which requires oxygen to form. On Earth, such minerals marked a period when our atmosphere became much more oxygen-rich, largely because of microbes. "Now we're seeing manganese oxides on Mars, and we're wondering how the heck these could have formed," says Los Alamos scientist Nina Lanza.
Turning sunlight into clean fuel is now cheap and simple
Scientists have already produced artificial photosynthesis, but it has been an exotic process until now. You aren't about to replace the oxygen-giving plants around your home, in other words. However, researchers at Florida State University researcher have found a way to make it practical. They've developed a single-layer manganese oxide material that efficiently traps sunlight and makes it easy to break down that energy into hydrogen and oxygen. Current light-gathering techniques, like solar cells, frequently need multiple layers just to work at all -- this would be far cheaper and simpler to make.
