The cloud is believed to appear as a shell of planetesimals — a small celestial body or planet — that surrounds the solar system ... they concluded that the numerous bodies within the inner Oort cloud ...

"We found that some comets in the inner Oort cloud form a long-lasting spiral structure." Spirals are a repeating theme in astronomy, with arguably the most famous example of a swirling armed ...

The image captured by the space telescope shows hundreds of objects in a variety of colors, shapes, and sizes scattered across the vast, dark expanse of space. At the center, a bright yellow star is ...

As for the cause of these spiral arms, the model points to the Kozai-Lidov effect , a gravitational phenomenon where distant celestial bodies induce long-term oscillations in the orbits and ...

These spiral arms, which are located nearly perpendicular ... a phenomenon known as the Kozai-Lidov effect. In this quirk of celestial mechanics, large bodies are affected by "Kozai oscillations ...

The stamps highlight two celestial wonders captured by the Webb Telescope: the spiral galaxy NGC 628 and the star cluster IC ...