Jupiter has the strongest magnetic field of any planet: its internal magnet is about 20,000 times stronger than Earth's. The bubble it carves out, the magnetosphere, is the largest structure in the Solar System after the Sun's own. Its tail stretches as far as Saturn's orbit. If you could see it, it would look at least as big as the full Moon in our sky.
A large share of Earth's water molecules formed in the interstellar cloud that existed before the Sun was even born, more than 4.6 billion years ago. You are literally drinking a cosmic fossil.
By day, the Martian sky looks butterscotch because of fine dust hanging in the air. But at dusk, those same grains scatter blue light forward, creating a bluish glow around the Sun. Rovers have photographed these blue sunsets: the exact reverse of what we see on Earth.