From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order of the planets isn’t just trivia—it tells a story about temperature, ...

Think you know your way around the solar system? From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order of the planets isn’t ...

Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities.

Jupiter and Venus, the two brightest planets in our solar system, should be widely visible for much of August in the northern hemisphere.

Astronomers have discovered the earliest seeds of rocky planets forming around a baby sun-like star, an unprecedented snapshot of "time zero," when new worlds begin to gel.

Astronomers have discovered the earliest seeds of rocky planets forming around a baby sun-like star, an unprecedented snapshot of "time zero," when new worlds begin to gel.