Protestors gathered in 2019 after a power company in Phoenix shut off electricity to a 72-year-old woman, Stephanie Pullman, when the temperature reached 107 degrees. She died — and advocates say her memory is behind efforts even still today to keep people safe when it's super-hot.
Polaris, a prototype fusion reactor from Helion, which recently announced a deal with Microsoft to provide the tech giant with electricity produced from fusion.
