"We found that some comets in the inner Oort cloud form a long-lasting spiral structure." Spirals are a repeating theme in ...
A comet called ATLAS dazzled the southern skies for the last few weeks. Now it's heading out of view for half a million years ...
It is also theoretical. Astronomers infer the Oort Cloud is there because it's the only logical explanation for the arrival ...
Far beyond Pluto, trillions of cold comets circle the sun in a lazy swarm called the Oort Cloud. A new simulation indicates what this comet-cloud looks like: a loose spiral that resembles a ...