Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

Speaking of which, it's time to test your knowledge of our stellar neighborhood with our solar system quiz. If you need a hint, click the yellow button. More science quizzes ...

The solar system is primarily comprised of our sun — which makes up the vast majority of its mass — and the eight planets, which are split into three subcategories. First up are the rocky ...

The solar system is primarily comprised of our sun — which makes up the vast majority of its mass — and the eight planets, which are split into three subcategories.

The Vera C. Rubin Observatory is expected to find millions of unknown objects in our solar system, and perhaps even a ...

Space New planet in the solar system? This is the new discovery by scientists that could change the view of our planetary neighborhood. A powerful new tool comes online this year that could help ...

Visitors from beyond the solar system — interstellar travelers — have long been predicted by science fiction writers like Arthur C. Clarke, ... are in Earth's neighborhood at a given time.

We've been able to visit and probe each and every one of the gas-giants that reside in our solar system, revealing our local neighborhood to be full of many incredible worlds.

Our Solar System is beautiful, mysterious, largely unknown… and accessible. In the next hundred years, we can send robotic craft, and even human hands, to many of those worlds. We can ride along ...