Deep in the sun’s core, two protons of hydrogen atoms collide violently. Under immense pressure they fuse together and release vast amounts of energy in a process known as nuclear fusion. Travelling ...

New research details the discovery of the highest-energy light ever observed from the sun. The international team behind the discovery also found that this type of light, known as gamma rays, is ...

Why does the sun shine, and how does it avoid burning out? The sun's energy is produced through a process called fusion, ...

The recent flurry of solar storms suggests the sun is in a period of maximal activity as part of its 11-year cycle. The active period is likely to continue over the next year, so more auroras could be ...

Electric bikes parading through city streets. The afternoon light glinting off clusters of floating solar panels. Neighbors guiding visitors through homes warmed by heat pumps, battery storage systems ...

To most people, the sun is a steady, never-changing source of heat and light. But to scientists, it’s a dynamic star, constantly in flux, sending energy out into space. Experts say the sun is now in ...

The sun is an incomprehensibly gigantic, constantly roiling nuclear furnace—but some days are even busier than others. Based ...

People have been telling stories about renewable energy since the nineteen-seventies, when the first all-solar-powered house opened on the campus of the University of Delaware, drawing a hundred ...

On Nov. 6, NASA's Parker Solar Probe passed within 234 miles (376 kilometers) of Venus' surface. The purpose of this close flyby was to accomplish a gravity-assist maneuver, in which the probe would ...