Fusion energy nears reality thanks to an ultra-powerful magnet

Fusion energy just had its second breakthrough in as many months. Motherboardnotes an MIT- and Commonwealth Fusion Systems-led research team has successfully demonstrated a high-temperature superconducting electromagnet producing a field strength of 20 tesla -- the most powerful field of its kind on Earth. The technology could be the key to SPARC, a fusion device due in 2025 that could foster a plasma field producing more energy than it consumes. Systems based on superconducting electromagnets a...