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The Age of Our Solar System: Why It Can't Be Billions of Years Old

Young Solar System

Just how old is our solar system?

If you ask an evolutionist that question, they’ll probably respond, “The same age as the universe—about 4.5 billion years.”

They might go on to tell you about how a cloud of dust and gas collapsed on itself, causing a star to begin to form as an unknown force compressed the cloud. As the star spun and collected more mass, a disk of dust began to form on the planets, and millions of years later, our solar system was formed.

Creationists and evolutionists agree that our solar system is about the same age as the universe—but that’s where the agreement ends.

Young-earth creationists believe our solar system was formed around 6,000 to 7,000 years ago when God created it on Day 4.

Genesis 1:14-16 says:

“Then God said, ‘Let there be lights in the firmament of the heavens to divide the day from the night; and let them be for signs and seasons, and for days and years; and let them be for lights in the firmament of the heavens to give light on the earth’; and it was so. Then God made two great lights: the greater light to rule the day, and the lesser light to rule the night. He made the stars also.”

So which is it? Billions of years’ worth of chance or God’s direct intervention?

The Age of Our Solar System Starts With Our Worldview

Discerning the age of our solar system—as with the age of our universe—comes down to our worldview. Our worldview influences how we interpret the data when it comes to origin theories.

After all, no human being was alive when the universe was first created (not even Adam since God created him on Day 6). And certainly no one alive today saw how exactly our solar system was formed and when.

Theories about origins always go beyond observational science and require that we interpret the facts.

Evolutionists who believe in millions of years look at dating methods that point to an old universe, such as radiometric dating for rocks, and ignore others that contradict them.

Young-earth creationists, on the other hand, point to dating techniques that put a limit on the age of the earth and our solar system. These methods include the strength of the earth’s magnetic field, the amount of salt in the ocean, the history of human civilizations, and others to confirm the biblical models.

Scientific Problems With Billions of Years

The main issue with the universe being billions of years old is that it doesn’t align with the creation account we find in Genesis 1-2.

But beyond the Word of God, there are also scientific reasons that our solar system can’t be billions of years old.

Take the moon, for example. The moon is slowly spiraling away from the earth at a rate of 1.5 inches per year. This means, of course, that the moon was closer to the earth in the past. About 6,000 years ago, the moon would have been around 800 feet closer than it is now.

If we use that same rate, the moon would have been touching the earth only 1.5 billion years ago—and it would’ve been pulled apart by earth’s gravity before that! In light of this, how could the solar system be 4.5 billion years old?

Comets are another great example of why the universe can’t be eons old. A comet is a small, icy mass that orbits the sun. As it does so, it continually loses mass from solar wind and pressure of photons, as you can observe from its two tails.

If our solar system is truly 4.5 billion years old, then we shouldn’t see any comets nowadays since they’re constantly eroding and being destroyed.

Evolutionists try to explain this away by saying an Oort cloud exists that provides our solar system with long-period comets. We can’t observe this Oort cloud because it’s supposedly 50,000 times farther from the earth than the sun.

But there isn’t a single shred of evidence that this Oort cloud actually exists.

Short-period comets allegedly come from the Kuiper belt, but this theory doesn’t hold water either. After all, objects in the Kuiper belt are different from comets. This theory simply can’t explain the many comets in our solar system.

A Young Milky Way

The truth is that our solar system isn’t billions of years old. God created it with love and wisdom several thousand years ago. It’s our privilege as humans created in His image to study and understand the depth and intricacy of God’s creation!

To learn more about our incredible solar system, watch Design in Astronomy featuring Dr. Danny Faulkner. Discover how unique our earth and solar system are and how God precisely designed them to support life.

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