No one has made a fusion reactor capable of generating power, but physicists have a pretty good road map for how to get there. One major milestone is heating fusion fuel up above 10 million degrees Celsius — nearly as hot as the center of the Sun.
Avalanche exclusively told TechCrunch that its desktop-scale fusion prototype has exceeded the milestone, heating a plasma to roughly 11 million degrees C. Only a handful of companies have accomplished the feat.