oort cloud
1
a distant, hypothetical region surrounding the solar system, thought to harbor icy bodies and comets
- The Oort Cloud is a theorized reservoir of comets and icy bodies that extends far beyond the solar system.
- The Oort Cloud is considered a source of long-period comets that occasionally enter the inner solar system.
- The Oort Cloud's existence helps explain the occasional appearance of comets from unexpected directions.
- The Oort Cloud is challenging to observe directly due to its vast distance and diffuse nature.
- The Oort Cloud is a key component in models of solar system formation and dynamics, influencing the distribution of comets in our cosmic neighborhood.