About 4 billion years ago, the terrestrial planets were bombarded by asteroids following an orbital shake-up of the outer Solar System. Lunar samples, planetary cratering records and dynamical ...

NASA’s Juno is now poised to shine a spotlight on the origins and interior structure of the largest planet in our solar system. As we wait for Juno’s first close-up images of Jupiter (to be ...

Billions of years after humanity’s “last call” --- and the Sun’s final gasp as a hydrogen-burning star --- what’s left of our solar system may again spawn planets, oceans, even new life ...

Astronomers have gotten better at tracking the motions of stars just beyond the solar system. But that’s made it harder to predict Earth’s future and reconstruct its past.

For centuries, astronomers have sought to understand the formation and evolution of the solar system and the dynamics that govern it. In particular, there is the long-standing question of whether ...