The epitome of that might be the Oort cloud—a truly massive shell made up of rocks and debris that forms a border ... something huge hidden in the makeup of the inner cloud: spiral arms that make the ...

"The disk, when viewed from a distance, would appear as a spiral structure with two twisted arms," the authors wrote. Those "arms" resemble the elongated structures of a spiral galaxy, like our ...

The Hubble Space Telescope image offers an up-close view of one section of the nebula, which is largely shaped by a young ...

Narrator: After that, the quarterback uses their other arm to twist their upper ... of these steps and never end up with a spiraling football. Getting that spiral comes down to the very last ...

At the edge of our solar system, a host of large, icy bodies make up the Oort cloud, which appears to sport two spiral arms reminiscent of a disk-shaped galaxy. New research founded upon a simulation ...