One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about ...

Early in our Solar System’s history, bits of icy debris were scattered and then gradually coaxed into a spiral alignment in ...

The Saturn typically ranks as the 7th brightest object,. It is visible to the naked eye and can be seen as a prominent celestial body in the night sky ...

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

Astronomers believe they've discovered a spiral structure inside the Oort cloud that surrounds our solar system.

Here's how to spot it and why it happens. The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it looks like. Now, new simulations ...

It happened around 14.8 to 14.5 million years ago, which is in line with when the Solar System passed through the Radcliffe ...

Our solar system, a cosmic ballet of planets held together by gravity and inertia, is uniquely structured compared to many other systems we observe in the universe. A notable difference is the ...

Interstellar material has been discovered in our solar system, but researchers continue to hunt for where it came from and ...