South Korea's Artificial Sun Sets New Fusion Record of 100 Million Degrees for Almost a Minute

• South Korea's "artificial sun" fusion reactor hit a record 100 million degrees Celsius for 48 seconds • Breaks previous 2021 record of 31 seconds by the same KSTAR reactor • Getting to sustained fusion is key challenge; has not yet put out more energy than put in • Tweaks to design like swapping carbon for tungsten improved efficiency
• Goal is to sustain 180 million F for 300 seconds by 2026