The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many ...

Typically astronomers find planets of similar ages to the ones in our solar system, but that’s starting to change. In a study ...

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 ...

Surprise, it's twins.

Astronomers have spotted two planets forming around a distant infant star, offering a time capsule into see what the solar ...

(CNN) — An accidental discovery might change how we think about one of the most mysterious structures in our solar system. The Oort Cloud, a large expanse of icy bodies revolving around the sun at a ...

The Oort Cloud, an expanse of icy bodies in the far reaches of our solar system, is shown here in a scene from "Encounters in the Milky Way," a show at New York City's Hayden Planetarium that spawned ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

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 ...

Planetary scientists led by Paolo Sossi have determined that Earth assembled almost entirely from material originating in the ...