3 Reasons Aliens Haven’t Visited Earth

by Ken Ham on June 25, 2026
Featured in Ken Ham Blog

Why haven’t aliens visited earth yet? Well, I recently saw an article that gave three reasons why extraterrestrial visits might not be occurring. I’ll share those with you, and then I’ll offer a reason of my own.

According to the article, “a third of the public believes aliens are here” and “what we know about the universe suggests aliens may exist” (despite there being absolutely no evidence that aliens do, in fact, exist). So why aren’t little green men making an appearance? Well, the author gives three reasons:

  1. Space is just too big, and it would take way too long for any aliens to reach us. Even if travel at the speed of light were possible, the phenomenon of time dilation means time would move slower for the aliens on their lightning-fast spacecraft, so interstellar travel would make them “time exiles” on their home planet, so they probably wouldn’t make the trip.
  2. It would take too much fuel. The energy requirements for such a trip are just too vast, making it basically impossible.
  3. Our atmosphere and environmental conditions could be toxic to alien life. After all, who knows how they evolved? Maybe oxygen is corrosive to them and life-sustaining to us.

So it’s not that aliens don’t exist, argues this article, it’s just that it’s unlikely they’d visit us—but if we don’t look for them, we won’t ever find them and we won’t ever know! That’s the logic that ends the article, anyway.

We haven’t had extraterrestrial visitors because there aren’t any out there to make the trip!

But here’s my reason for why aliens haven’t yet sent spaceships to earth: They don’t exist. That’s right! We haven’t had extraterrestrial visitors because there aren’t any out there to make the trip!

Why do I say this? Well, because I have a different starting point. The majority of those who believe in aliens have an evolutionary worldview. In that view, life evolved on earth, so given enough time, life must’ve evolved somewhere else too. We aren’t unique; we aren’t special—so it must be fairly easy, given enough time, to make life.

But I reject that worldview because I start with God’s Word. According to God’s Word, God created life, formed earth to be inhabited, and created the heavens as markers of times and seasons and to vividly display his glorious handiwork. It’s earth that is the focus of God’s attention, and it’s Adam’s race that plunged the whole cosmos into a broken, groaning state. (Think about it: If intelligent aliens exist, they didn’t sin in Adam. They aren’t related to the first Adam, so they can’t be saved by the last Adam, and yet they suffer the effects of the curse because all of creation is groaning, as Romans 8:22 says.) It’s to earth that God sent his Son to redeem a fallen humanity.

From a biblical-worldview perspective, intelligent aliens don’t exist, and it’s highly unlikely that other lifeforms exist out in the universe. People desperately want aliens to exist so they can know they aren’t alone and that there’s something else out there. But there is someone else out there—the Creator God. And he created this earth, has miraculously moved throughout history, and visited earth himself in the person of his Son, Jesus Christ, who died the death we deserve, rose from the grave, and offers eternal life with him to all who will repent and believe.

You don’t need aliens to know you’re not alone—God has given you his Word and the offer of himself!

Remember:

The heavens are the heavens of Yahweh,
But the earth He has given to the sons of men. (Psalm 115:16)

Thanks for stopping by and thanks for praying,
Ken

This item was written with the assistance of AiG’s research team.

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