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

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

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 may have given them a first glimpse.

Need a new idea to keep kids entertained? Try stargazing. Free learning activities and videos about the solar system Free learning activities and videos about the solar system Free learning ...

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

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 ...

According to an alternative model of how intelligent life emerges on planets like Earth, the existence of aliens—and human ...

DALLASI absolutely love this, it's called an orrery, and it's a little mechanical model of our solar system. You can see the planets here, orbiting the sun as they would do in real life.

New research suggests the Oort Cloud may have a spiral structure like a mini galaxy. Supercomputer models reveal its mysterious shape, offering new insights into the edge of our solar system.

An Egyptian astronomer called Ptolemy (AD100-168) described one of the earliest ideas for how the Solar System is structured. Ptolemy’s model and many earlier ideas of the Solar System had the ...

the researchers who did the new study used data gathered from the orbits of comets and gravitational forces from within and beyond our solar system to create a model of the Oort cloud's structure.

Scientists from UNSW Sydney have located a potential new exoplanet -- a planet that orbits a star outside of our solar system -- using ... ran a series of model simulations that pointed to the ...