Tech & Science

A crane and dome-shaped roof have been erected on the top floor of Fukushima Daiichi's No. 3 building, in preparation for removing rods and rubble from the spent fuel pool. (Photo by Shinya Sawai)

Inside a meltdown-hit Fukushima reactor building

Seven years on, Tepco aims to pull fuel out of Unit 3's rubble-strewn pool