Mercury, Venus, Jupiter, and Saturn—will be visible to the naked eye. Uranus and Neptune, being much farther away, will ...

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known as a ...

A scale model of the solar system, with each planet depicted in relief on individual square granite markers installed atop concrete bases embedded in the ground. Each planet bears a laser etched ...

Six of the planets of our solar system will be aligned in February for a spectacular sky show. Here’s where and when you can ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.