Hints:

1) It's the largest experimental setup built at Germany's Max Planck Institute of Plasma Physics. It took nearly 1.1 million hours (~19 years) for the assembly of this machine.

2) It's one of the most prominent research concepts to develop clean/renewable energy

I'd love to hear your thoughts in the comments, also feel free to read my Instagram post for additional info:

https://www.instagram.com/p/C0y1Ce9pSAc/?igshid=MTc4MmM1YmI2Ng==