Did you know it rains on the Sun? Not water, of course. It's solar rain, which occurs in the Sun's corona, the outermost ...

We all picture the Solar System as a neat cosmic racetrack with planets orbiting the Sun on a flat, organized path. But have ...

Threats from space aren't always obvious, but statistically, it's only a matter of time before one of them happens. One of ...

Material around Chiron, a small icy world in the far reaches of the solar system, may be taking shape into a ring system of ...

What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...

Solar electricity is growing rapidly, but can it really dominate the global energy system? Here is what it will take for us ...

Voyager 1, launched in 1977, has traveled farther than any spacecraft in human history. After more than four decades of silent endurance through space, it now sails beyond the orbit of the outer ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of the solar system as we thought. A team of astronomers led by Julio Fernández ...

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its nebular gas had been consumed—Earth's solar system and its planets looked more ...

Bluetti is ending September with an all-new release for RV and van life lovers who want to adventure with a more eco-friendly power source – plus, we’ve even secured some exclusive savings for our ...

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 ...