What's 7 feet tall, 14 feet wide and weighs one hundred and twenty five tons? It's a giant magnet, one of the largest ever built, and there's 7 of them. The magnets are part of a huge global project involving 35 nations and billions of dollars - all to reproduce the sun's boundless energy.

Originally released by Inside Science, 2017. Streaming video file encoded with permission for digital streaming by Infobase on July 07, 2017.

The Future of Fusion (3:57);