While Saturn 's magnificent rings, spanning 175,000 miles (280,000 kilometres), are a familiar celestial marvel, scientists ...

This documentary explores the bizarre characteristics of Triton, Neptune’s strange moon that defies the rules of the solar system with its backward orbit and icy geysers.

After decades of exploring, NASA's Voyager 1 hit the edge of the solar system and passed through a great "wall of fire," ...

A NASA mission to study the heliosphere—the sun's magnetic bubble that shields our solar system—and develop a better understanding of space weather was launched from the agency's Kennedy Space Center ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...