The Oort cloud is an interesting feature of our solar system; a nebulous, spherical cloud of comets which marks the very outer limit of our solar system. The Oort cloud is also the source of our ...

The human mind may find it difficult to conceptualize: a cosmic cloud so colossal it surrounds the sun and eight planets as it extends trillions of miles into deep space. The spherical shell known ...

This region, if it exists, is called the Oort Cloud. We have no observational data from that region because it is so very far away. We cannot tell if there really is an Oort Cloud as yet.