After decades of nuclear fusion power being always ten years away ... rare-earth barium copper oxide (ReBCO) magnet field coil, they made a big leap towards their demonstration reactor: SPARC.

has announced the completion of the intricate process of building the first quadrant of the magnet at the heart of the ...

Almost 20 meters tall and (more than four meters in diameter when fully assembled, the magnet is a crucial component in the attempt by 35 nations to master nuclear fusion. Massachusetts Institute ...