Space is stranger than you think. Our solar system — the only one we’ve ever called home — is packed with phenomena so bizarre, so extreme, and so counterintuitive that they sound like pure science ...

According to a new study, the Solar System may break apart within about 6 billion years as the dying Sun’s uneven mass loss destabilizes the outer planets.

For years, everyone assumed our solar system’s eight planets (nine, when Pluto was within the fold) were the whole story. Planets, moons, asteroids, comets, and that’s all — case closed. But there’s a ...

Planetary scientists have long debated where the material that formed Earth comes from. Despite its location in the inner solar system, they consider it likely that 6–40% of this material must have ...