As the United States prepares to celebrate its 250th anniversary, the history of the solar system tells its own story of ...

And the earth was without form and void, and darkness was upon the face of the deep. Sometimes, if the night is dark and clear enough, you can look up and see the Milky Way in its arc across the sky.

Where does the solar system end and interstellar space begin? That's a question scientists have been working to answer using ...

Here are some of the most dizzying facts about our solar system.

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

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 ...

Approximately 4.5 billion years ago, a cold cloud of gas and dust buried deep in one of the Milky Way galaxy’s spiral arms started to collapse. From there, gravity worked its magic. The cloud began to ...

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 ...

Astronomers have revealed new details about the makeup and age of a visiting comet that was born around a distant star. They ...

(International Gemini Observatory/NOIRLab/NSF/AURA/Shadow the Scientist; Image Processing: J. Miller & M. Rodriguez ...