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.

The eight planets in our solar system orbit the sun in roughly the same plane because they all originally formed from the same disc of debris around the sun. The line the sun traces across the ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

According to the team, the gravitational pull of our solar system's planets and passing stars do not have much of an effect on the Oort Cloud. The team's new model ... the Earth's orbit around ...

The planets in our solar system orbit the sun essentially along the same line across the sky in a plane called the ecliptic. For that reason, planets in our Earthly sky always appear somewhere ...

After identifying an unusual trend in the movement of the hot Jupiter planet TOI-2818b, the team, from the UNSW School of Physics, ran a series of model ... in our solar system orbit the sun ...

Could a giant planet between Mars and Jupiter have doomed Earth? A new study suggests that small changes would have been manageable, but a massive super-Earth could have made our planet uninhabitable ...

They developed a 3D model that simulates how the solar system's orbital architecture may ... With each mass, she modeled 2 million years of orbit to find what kind of architectural impact each ...

The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away that has long been a ...

scientists used NASA's Pleiades supercomputer to model the structure of the Oort cloud based on the trajectories of comets as well as the gravitational forces within and beyond our solar system.

Interestingly, they'll always appear along the same arc in the night sky. That path is called the ecliptic, and it exists because all planets in our solar system orbit around the sun on roughly the ...