http://www.businessinsider.com/germany-is-turning-on-its-monster-stellarator-2015-10For more than 60 years, scientists have dreamed of a clean, inexhaustible energy source in the form of nuclear fusion. And they're still dreaming. But thanks to the efforts of the Max Planck Institute for Plasma Physics, experts hope that might soon change. Last year, after 1.1 million construction hours, the institute completed the world's largest nuclear-fusion machine of its kind, called a stellarator. The machine, which has a diameter of 52 feet, is called the W7-X. And after more than a year of tests, engineers are finally ready to fire up the $1.1 billion machine for the first time. It could happen before the end of this month, Science reported.
