Solar

After decades of fighting for renewable energy, solar power is finally achieving economic dominance. But AI data centers threaten to consume those energy gains

A century after Robert Goddard’s first-ever launch of a liquid-fueled rocket, two NASA experts weigh in on what his legacy still holds for spaceflight’s future

Traditional solar fails in the windswept north. Two Swedish inventors are betting on aerodynamic resilience to solve the latitude gap

With no fuel or engines, tiny explorers will surf sun-warmed air alone to explore high in the skies of Earth and Mars

Even without subsidies, renewable energy is staying competitive with power from gas and coal

The world’s richest man, Elon Musk, owes his superstar success to self-satisfied competitors who blew obvious opportunities

Two renewable resources, wind and solar, together have produced more power than coal through July—a first for the U.S.

Inside giant, iridescent clams are algal farms that could inspire highly efficient bioreactors

Investments in carbon-free energy will be twice as large as fossil fuel spending in 2024, the International Energy Agency predicts

Inexpensive Chinese solar panels are pitting Americans who want cheap equipment against those who want to make it

California has hit record-breaking milestones in renewable electricity generation, showing that wind, water and solar are ready to cover our electricity needs

During the total solar eclipse, skywatchers saw ruby-colored prominences sticking out of the moon's shadow. Here's the science of those red dots