The Oort cloud is a shell of icy objects that forms the very outskirts of our Solar System. Recently ... they would need about 30,000 years. So yeah—big, mysterious, and simultaneously too far to get ...

A giant wave of undulating gas and dust appears, per new research, to have engulfed our Solar System millions of years ago. Now, University of Vienna doctoral student Efrem Maconi thinks that our ...

The Oort cloud is thought to be a remnant of the solar system’s formation, a shell of icy debris left over from the chaotic ...

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...

Previous research has suggested that the Oort cloud contains remnants of the solar system's planets, which were formed over 4 billion years ago, but its exact shape and structure have been a mystery.

The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it looks like. Now, new simulations may have given them a first glimpse.

The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it looks like. Now, new simulations may have given them a first glimpse.

The mysterious cloud of space rocks and debris at the edge of the solar system may have spiral arms, making it resemble a mini galaxy, a new study says. The Oort cloud is a theoretical debris ...

The mysterious cloud of space rocks and debris at the edge of the solar system may have spiral arms, making it resemble a mini galaxy, a new study says. The Oort cloud is a theoretical debris shell at ...