Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact configuration and later underwent a violent reshuffling that scattered them to ...

The newly identified cluster of Kuiper Belt objects lies about 4 billion miles from the Sun, offering fresh clues about how ...

This artist’s illustration provided by the European Southern Observatory shows an exoplanet orbiting around two brown dwarfs, celestial objects that are lighter than stars, but heavier than gas giant ...

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...

At the farthest edge of the Sun’s influence, the Voyager probes have stumbled into something that sounds almost mythic: a ...

Emily Simpson has loved space since she was a 10-year-old kid celebrating her birthday at a planetarium. Now a recent Florida Tech graduate, she leaves with not only a dual degree in planetary science ...

Could the icy moons of our solar system hold life beyond our planet? Keith Cooper looks at how planetary scientists plan to ...

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

A new ‘map’ of distant planets has been unveiled by scientists from The University of Warwick, which finds a ridge of planets in deep space, separating a desert of planets from a more populated ...

Winds of over 2 km per second have been discovered flowing around planet outside of the Earth’s solar system, new research has found. The University of Warwick discovery is the first time that a ...

World views and the solar system -- Earth-centered world views in classical Europe -- Non-European world views -- Earth-centered world views in the Middle Ages and Renaissance -- Sun-centered and ...