Scientists know our planet is precisely the right distance from the sun to benefit from its heat. A little closer and all the water would evaporate, as on Venus. Only a bit farther and everything would freeze like it does on Mars. Earth is also just the right size to generate the right amount of gravity. Less would make everything weightlessly sterile (the Moon), while more gravity would trap poisonous gases that suffocate life (Jupiter).

The intricate physical, chemical, and biological interactions that comprise our world bear the imprint of a sophisticated Designer. We catch a glimpse of this complex craftsmanship…