The Oort cloud is traditionally thought of as a vast shell of perhaps trillions of icy objects encasing our solar system, serving as the final boundary between us and the dark reaches of interstellar ...

We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally.

Astronomers have discovered a vast cloud of gas and dust stretching out for a staggering 200 light-years and lurking in a poorly explored region of the Milky Way. The structure, named the Midpoint ...