How big would our Solar System be if the Sun was an eleven-inch football/soccer ball? Alex and Jonathan set out to find the ...

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...

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

Using a NASA supercomputer to run models, researchers led by SwRI astronomer David Nesvorny now believe that the Inner Oort cloud looks like a spiral disk, around 0.24 light-years across, with two ...

Prepare for an unforgettable 'parade of planets' as 7 planets will align in a rare celestial event on Feb. 28, for the last ...

While most objects in our solar system orbit the same plane ... So they reasoned that this "something" was as large as a planet orbiting our sun. In fact, they even went so far to give it a ...

Researchers claim that there could be at least 1 million interstellar objects hiding in the Oort Cloud at the edge of our ...

They can be very large - the biggest, Ceres ... Museum planetary science researcher Prof Sara Russell explains the origins of Earth's closest companion. Our solar system's outermost planet may be last ...

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 ...