Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

Solar energy is a significant factor in today’s electrical energy market. NETA-certified technicians need to understand how ...

Every week, Space.com delivers the latest discoveries, launches, and cosmic curiosities from across the universe. From ...

Learn about the solar system in our new What If song. Explore planets, moons, and cosmic wonders through music and imagination.

When a meteor streaks across the sky, it's not just beautiful. It's nature's way of delivering a time capsule to Earth.

Project Lyra is one of the boldest mission concepts ever proposed — a plan to chase down ‘Oumuamua, the bizarre interstellar ...

Australia’s solar era is evolving. Prices may edge up in 2026, but homeowners still win—thanks to lasting savings, stable ...

1 / 6 | Visual: In this diagram, J, S, U, and N are the solar system’s giant planets. What’s the collective name for the objects in blue?

Last month, Google quietly killed off Google Sky Maps. But there’s still another way to virtually explore most of the solar system a la Google Maps: it’s called Google Maps in Space. Google Maps in ...

Portal’s heat exchanger thruster, known as Flare, fires up during a test in a vacuum chamber. (Portal Space Systems Photo) Bothell, Wash.-based Portal Space Systems says it has successfully tested its ...

When Terrence Dwyer received a knock on his door and a flyer for a solar panel system small enough to fit on his deck, he was quickly sold. Solar systems that plug into regular wall outlets have been ...

Small, plug-in solar power systems have become popular in Germany and several other countries. So why haven’t they taken off in the United States? By Claire Brown Across Germany, more than a million ...