This solar system is unique because all six planets move similar to a perfectly synchronized symphony, scientists said. In technical terms, it's known as resonance that's "precise, ...

The solar system formed about 4.6 billion years ago from a giant rotating cloud of gas and dust known as the solar nebula. Gravity caused the nebula to collapse in on itself, forming a dense, hot ...

Our Solar System is beautiful, mysterious, largely unknown… and accessible. In the next hundred years, we can send robotic craft, and even human hands, to many of those worlds.