Scientists chasing clean, virtually limitless energy have quietly crossed a new threshold, setting records that would have sounded like science fiction a decade ago. Their progress is still far from ...

In February, France's WEST nuclear fusion reactor made a big step toward getting clean, star-like energy for everyone. The machine held superheated plasma for 1,337 seconds, or just over 22 minutes.

The first half of 2025 brought a small but potentially significant tipping point in the global energy system, according to the independent clean energy research group Ember. "Clean sources grew more ...