Author Philip Yancey writes:

Where I live in the Rocky Mountains, you can see several thousand stars with the naked eye on a clear night. All of them belong to the Milky Way galaxy, which contains more than 100 billion stars, including an average-sized one that our planet Earth orbits around—the Sun.

Our galaxy has plenty of room: 26 trillion miles separate the Sun from the star nearest to it. And traveling at the speed of light, it would take you 25,000 years to reach the center of the Milky Way from our home planet, which lies out in the galaxy’s margins.

Until a century ago, astronomers believed the universe consisted of our galaxy alone. Then, in the 1920’s, Edwin Hubble proved that one apparent cloud of dust and gas in the night sky, named Andromeda, was actually a separate galaxy. Now there were two. When NASA launched a large telescope into space for a clearer view, they appropriately named it after Hubble.

In 1995, a scientist proposed pointing the Hubble Space Telescope at one dark spot, the size of a grain of sand, to see what lay beyond the darkness. For ten days, the telescope orbited Earth and took long-exposure images of that spot. The result, which has been called “the most important image ever taken,” would astonish everyone. It turns out that tiny spot alone contained almost 3,000 galaxies!

Scientists now believe that if you had unlimited vision, you could hold a sewing needle at arm’s length toward the night sky and see 10,000 galaxies in the eye of the needle. Move it an inch to the left and you’d find 10,000 more. Same to the right, or no matter where else you moved it. There are approximately a trillion galaxies out there, each encompassing an average of 100 to 200 billion stars.

Possible Preaching Angle:

How should we adapt to this humbling new reality? Back when people assumed the universe comprised a few thousand stars, a psalmist marveled in prayer, “When I consider your heavens, the work of your fingers, the moon and the stars, which you have set in place, what is mankind that you are mindful of them, human beings that you care for them?” (Ps. 8:3–4).

The answer, of course, is found in the New Testament revelation that God loves the world so deeply (John 3:16) that he sent his Son in the form of a servant (Phil. 2:6-7) to die for humanity. In an act of humility beyond comprehension, the God of a trillion galaxies chose to “con-descend”—to descend to be with—the benighted humans on this one rebellious planet, out of billions in the universe.