Fukushima reactor's radiation levels killed a cleaning robot

Tokyo Electric Power Co. (Tepco) wasn't kidding when it said the radiation levels inside Fukushima's nuclear reactor are the highest they've been since its meltdown in 2011. It had to pull out the robot it sent in to find the exact location of melted uranium fuel and to do preliminary cleanup inside the reactor, because it died shortly after it started its mission. Apparently, two of the machine's cameras suddenly became wonky, darkened and developed a lot of noise after merely two hours of scraping debris away. Those are all signs of extremely high radiation levels. Tepco believes the robot endured approximately 650 Sieverts of radiation per hour if it only lasted a couple of hours.