Described as the biggest, longest, most expensive science experiment in history, the ITER project reached the halfway mark last month. The one hundred billion experiment to construct a series of massive buildings which will ultimately allow for the production of fusion power gives promise of unlimited clean energy in the future. The wonder is much of the developed world has cooperated on this, with the EU leading the way, joined by Russia, the US and China. The first plasma is to be produced in 2025, heated to 150 million degrees - hotter than the sun.
https://www.theguardian.com/environment/2017/dec/06/iter-nuclear-fusion-project-reaches-key-halfway-milestone