NASA's Curiosity rover is doing an incredibly rare experiment on Mars - Yahoo

NASA's Curiosity rover is doing an incredibly rare experiment on Mars  YahooMars Curiosity Seeks Evidence Of Organics  astrobiology.comCuriosity Performs Final Organic Solvent Test On Mars  findarticles.comCuriosity Rover Reconnects After Solar Conjunction, Begins Critical Organic Search on Mars  Gadgets 360Curiosity Blog, Sols 4788-4797: Welcome Back from Conjunction  Space Daily