Whatever hypothesis may ultimately be found to account for the present solar system, the Theory of Tidal Friction must therefore form a part of it. The physical basis of the theory is very simple.

A large planet that was ejected from its own solar system is a possible candidate. In the paper, the researchers say that the estimate that this theory has about a 1 in 100 chance of being correct.

For centuries, astronomers have sought to understand the complex dance of planetary motion. The ancient belief that planets followed perfect circular orbits aligns intriguingly with modern theories of ...

Researchers are still not sure how old the moon is. However, there is now growing evidence that it is almost as old as our solar system.

The heliosphere, a cosmic bubble formed by the Sun, protects our solar system from interstellar threats and influences life's ...

There are people who believe the pull of neighboring planets is the causde. Others are more concerned about a new hot dog ...

The Oort Cloud is the name given to a theorized group of potentially trillions of icy objects on the edge of our solar system. But while it has been accepted as a theory for over 70 years ...

Primordial helium from the beginning of the solar system may be stuck inside Earth's solid core, new research suggests. The findings could have implications for a long-standing debate about how ...

So exactly how many solar system moons have we found? The answer, it turns out, depends on your definition of a moon. But this is likely just "the tip of the iceberg," Edward Ashton, an astronomer ...

the 148780 Altjira system suggests there could be similar triples waiting to be discovered, which would support a particular theory of our solar system's history and the formation of Kuiper Belt ...