Every 11 years, our sun goes through a cycle of activity known as the solar cycle a natural rhythm of rising and falling sunspot numbers. When the cycle reaches its most active phase, it’s called the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Skywatchers in the Southern Hemisphere will witness the year ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. September 2025 will see two spectacular eclipses, with the ...

Solar and wind accounted for 91% of new US electrical generating capacity added in the H1 2025, according to data just released by the Federal Energy Regulatory Commission (FERC), which was reviewed ...

China added more than 1,000GW of new solar capacity in 2025. Image: China Energy Engineering Corporation. The world added 510GW of new solar PV capacity in 2025, the most of any electricity generation ...

2025 was another busy year on the sun. But how did it compare with 2024, and what will 2026 bring for solar activity and the northern lights? When you purchase through links on our site, we may earn ...