The title picture is misleading. It's not a "fusion reactor", it's a training facility at Culham, never having an actual reaction going (it's actually a few spa

The title picture is misleading. It's not a "fusion reactor", it's a training facility at Culham, never having an actual reaction going (it's actually a few spare sectors of the reactor vessel assembled together to form 3/4th of its circumference). Those reflections all over the right part of the picture? That's plexiglass window between the vessel and an access platform.