Energy made in the Sun's core is absorbed and re-emitted countless times by ultra-dense plasma. That zigzag trip to the surface takes tens of thousands of years, over 100,000 by some estimates. The final hop to Earth takes just minutes. The warmth on your skin set off long before the first cities were built.
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.