Vega encircled by asteroid belt

Astronomers believe they've found a large asteroid belt around Vega, the second brightest star in northern night skies.

Asteroid belt boosts chances of complex life

The size and location of an asteroid belt could be a significant factor in determining whether complex life will evolve on a nearby Earth-like planet.

Solar system shaped by Jupiter's travels

A new model of the early solar system shows Jupiter rocketing about the place, moving toward the center of the solar system and back out again.