It is just the right distance away from the sun, is made of just the right kinds of material, and is just the right temperature and density. It orbits the sun in a stable, circular path, which allows our global temperature to avoid the extremes between heat and cold that would have make life impossible to start or sustain. It has a moon that helps keep it in line, holding a nearly constant tilt. It if wasn't for our moon, Earth could wobble constantly like Mars, moving areas of our planet quickly in and out of temperature zones. Such quick movement would not have been conducive for life to start and flourish here.
Earth is truly a gift, and one to be cherished for all time.
The Cosmos appears every Sunday in the Youngstown Vindicator .