If our solar system seems stable, it's because our short lifespans make it seem that way. Earth revolves, night follows day, ...

The Sun’s outer atmosphere—the corona—only reveals itself during total solar eclipses, which happen about every 18 months on ...

If you were to look at a giant picture of space, zoom in on the Milky Way galaxy, and then zoom in again on one of its outer spiral arms, you’d find the solar system. Astronomers believe it ...

In 2005 Levison and his colleagues at the Côte d’Azur Observatory in Nice, France, published an influential hypothesis, now called the Nice model, which posits that the solar system began with ...