Every classroom globe, every satellite photo of Earth from orbit, every map projection of the planet’s surface carries an ...

Venus takes about 243 Earth days to complete a single rotation, and it does so in the opposite direction from nearly every ...

The outer solar system once seemed like a quiet backwater. But a glut of tiny, strange moons with unruly orbits are coming ...

Add Yahoo as a preferred source to see more of our stories on Google. What type of star it is: A yellow dwarf star The sun is the star at the center of our solar system. It's the largest, brightest ...

When the sun eventually expires and swells to engulf Earth, might the remnants of landfill and deeply buried nuclear waste be ...

Our solar system has been around for 4.6 billion years. While that sounds like a long time, it's just a blip in the 13.8 billion-year story of the universe. And one day, the solar system will cease to ...

An artist's conception showing a planetary smash-up between a Moon-sized object and a Mercury-sized object. (NASA/JPL-Caltech ...

A village in Kent is home to what is thought to be the world's largest scale model of the solar system and beyond, created to ...

As it turns out, the conditions that set Venus and Jupiter up for their conjunctions in the sky are the same that are ...