"We were quite surprised," Dones continued. "Spirals are seen in Saturn's rings, disks around young stars and galaxies. The ...

More information: David Nesvorny et al, A Spiral Structure in the Inner Oort Cloud, arXiv (2025). DOI: 10.48550/arxiv.2502.11252 ...

a group of researchers believes they’ve managed to uncover something huge hidden in the makeup of the inner cloud: spiral arms that make the overall structure appear almost like a galaxy. Critically, ...

The Solar System continues to surprise us day after day and its presence in terms of dominance and expansion goes far beyond ...

Most of the long-period comets in the Solar System come from the outer Oort Cloud. The inner region is much more stable. It's ...

Now, researchers have developed a new model that suggests the inner structure of the Oort cloud may look like a spiral disk. They published their findings Feb. 16 on the preprint server arXiv ...

The Oort cloud is traditionally thought of as ... "The disk, when viewed from a distance, would appear as a spiral structure with two twisted arms," the authors wrote. Those "arms" resemble ...

Pairing an analytic model with the supercomputer simulation, they concluded that the numerous bodies within the inner Oort cloud form a spiral structure that stretches about 15,000 au in length and is ...

Now, a new model suggests that the inner part of the Oort Cloud may have an unexpected structure resembling a spiral, much like a miniature galaxy. The Oort Cloud begins roughly 2,000 – 5,000 ...

Groundbreaking research reveals the Oort Cloud's shape as a spiral structure, challenging traditional beliefs about its random collection. NASA's Pleiades supercomputer simulations suggest the ...

"We found that some comets in the inner Oort cloud found between 1,000 au to 10,000 au, form a long-lasting spiral structure," Luke Dones, study team member and principal scientist at the ...