Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published ...

A new study suggests that a massive structure beyond Jupiter trapped the cosmic dust needed to form the first building blocks ...

The ingredients that help make a planet livable did not necessarily come from where many scientists once thought. A new ...

The water that makes up the oceans acted as a key ingredient for the development of life on Earth. However, scientists still do not know where the water here on Earth came from in the first place. One ...

Saturn, the sixth planet from the Sun, holds a distinction no other world in our solar system can claim: its average density ...

Jupiter's giant moon Ganymede is the only known moon to have its own magnetic field — and it may be heating up in a process "not yet observed anywhere else," new research suggests. This standout ...