Nuclear fusion reactor in South Korea runs at 100 million degrees C for a record-breaking 48 seconds 

 The experimental fusion reactor sustained temperatures of 180 million degrees Fahrenheit for a record-breaking 48 seconds. 

https://cdn.mos.cms.futurecdn.net/RGb8UTYLeJHKvp2Hkqmig7.jpg

https://www.space.com/nuclear-fusion-reactor-south-korea-runs-48-seconds