Today is the day of the summer solstice in the Northern Hemisphere. It’s the longest day and the beginning of summer north of the Equator and the shortest day and beginning of winter in the southern hemisphere. Today everywhere in the Northern Hemisphere, daylight will be more than 12 hours. In the Southern Hemisphere, daylight will be less than 12 hours.
The reason we have changing seasons of the year is that the Earth is tilted 23.5 degrees in relation to the Sun. As Earth orbits the Sun, the North Pole tilts directly toward the Sun today. At the same time, the South Pole is tilted away from the Sun. In exactly six months, the opposite will be true.
Why is the tilt of the Earth a good thing? If we didn’t have a tilted Earth, less of the planet would be hospitable for life. The area of the Equator would be extremely hot, and the northern and southern regions of the planet would be extremely cold all year. Without the changing seasons, the annual cycle of life would not happen. Life on Earth would not only be much more difficult, but it would also be much less interesting. If the tilt were much greater than 23.5 degrees, the extremes of the seasons would be much more dramatic. All animals and humans would have to migrate to survive.
The tilt of planet Earth is one of many “just right” factors that make our world not just a suitable place for life to exist, but an excellent place for advanced life to thrive. We think that is not an accident but by design. Will we ever find life on any other planet? The chances seem to be slim for any life. The prospect of finding another planet able to support advanced life is next to impossible. If God wanted to, He could create life anywhere. At present, in spite of the best efforts of astronomers to find a comparable planet, there seems to be no place like home.
Welcome to the summer solstice if you are in the Northern Hemisphere and welcome to winter if you happen to live on the southern half of the globe.
–Roland Earnst © 2018