Scientists have gotten very good at measuring the age of things using a variety of techniques, ranging from counting the rings on trees to using highly advanced radiocarbon dating, and much more. When ...

Forbes contributors publish independent expert analyses and insights. Dianne Plummer is an Energy Consultant and Certified Energy Manager. Rooftop solar has become one of the fastest-growing clean ...

We spent $1,780 to power our house and three electric cars in 2025. We saved $6,341 in 2025 by powering our home and cars with solar energy. That’s $528 a month that we can now spend on anything other ...