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 as ...

In the wee hours of Thursday morning Angelenos will get their first peek at a double whammy astrological delight — a Hunter's moon that's also a supermoon.

It emerged from the mysterious Oort Cloud, a bubble-shaped phenomenon that contains our solar system inside it. Pluto is more than 3.24 billion miles away from Earth and the Oort Cloud is even ...

An ancient visitor from the far reaches of our solar system is making a once-in-a-lifetime appearance. The Oort Cloud Comet, ...

If an Oort Cloud object finds its way to the inner solar ... He noted about 20 of the comets had an average distance from the sun that was more than 10,000 astronomical units.

If an Oort Cloud object finds its way to the inner solar ... He noted about 20 of the comets had an average distance from the Sun that was more than 10,000 astronomical units.

Astronomers infer the Oort Cloud is there because it's the only ... He noted about 20 of the comets had an average distance from the Sun that was more than 10,000 astronomical units.