Ever wondered how much is the earth worth? Turns out, an astronomer actually did the math on this.

Back in 2020, Greg Laughlin from Yale took a crack at pricing our planet. His conclusion? Roughly $5 quadrillion. Yeah, that's $5,000,000,000,000,000. The methodology was actually pretty interesting—he factored in mass, temperature, age, and crucially, the planet's ability to sustain life.

The core insight here is that how much is the earth worth really depends on one thing: habitability. The more life-supporting a planet is, the higher the theoretical value. Makes sense when you think about it.

Now here's where it gets fun. Mars, by comparison, comes in at just $16,000. Basically pocket change. But Venus? That's where it gets brutal. One cent. Literally a penny. When you've got 96% carbon dioxide, surface temperatures that melt lead, and winds that would shred anything standing, the market value apparently bottoms out.

The wild part? Even the Death Star from Star Wars got valued at $852 quadrillion in some estimates. So how much is the earth worth relative to fictional mega-structures? Way less, actually.

Of course, this isn't meant as an actual real estate listing. It's more of a thought experiment. But it really drives home something important: a planet that can actually support life isn't just rare. It's astronomically valuable. And we've only got the one.