Part of the NerdBeach Series “How Our Solar System Works“

Out of every planet in our solar system, Mars has somehow become the celebrity.
Sure, Jupiter is bigger.
Saturn has better accessories.
Venus is basically a flaming death trap.
Neptune has winds that could erase your house from existence.
But Mars? Mars gets all the attention. Books are written about it. Movies are made about it. Scientists obsess over it. Billionaires keep trying to build rockets to it.
Humanity has looked at Mars for centuries and collectively agreed. But why? Why are we so obsessed with one dusty red rock sitting millions of miles away? Why does Mars fascinate us more than every other planet?
Let’s dig into why the Red Planet has become humanity’s favorite cosmic obsession.
It Actually Looks Kind of Earth-Like
- Reason for Mars’ Fascination: Its Earth-like features, such as mountains, valleys, deserts, and polar ice caps, make it feel familiar and relatable.
- Comparison with Other Planets: Unlike the gas giants (Jupiter and Saturn) and the inhospitable Venus, Mars resembles a place where humans could potentially walk.
- Overall Impression: Mars is perceived as a barren, dusty, and freezing environment, but still a place that is more believable than other planets.
The biggest reason Mars fascinates people is simple: It feels familiar. Compared to the other planets, Mars is weirdly Earth-adjacent. It has:
- mountains
- valleys
- deserts
- polar ice caps
- weather
- seasons
That already makes it more relatable than planets like:
- Jupiter, which is basically just storm soup
- Saturn, which is fancy storm soup
- Venus, which is hell soup
Mars looks like a place. A barren, dusty, freezing place, sure—but still a place. When people imagine walking on another planet, Mars feels like the most believable option. It looks less like alien madness and more like: “Arizona if something went terribly wrong.”
It May Have Once Had Water
- Evidence of Past Water: Scientists found evidence of ancient riverbeds, dried lake basins, minerals that form in water, and underground ice deposits.
- Significance of Past Water: The presence of water suggests Mars may have been more Earth-like in the past and raises the possibility of past life.
One of the coolest discoveries about Mars is that it likely once had:
liquid water
Scientists have found evidence of:
- ancient riverbeds
- dried lake basins
- minerals that form in water
- underground ice deposits
This suggests Mars may once have had:
- flowing rivers
- lakes
- maybe even oceans billions of years ago
Which is wild. Because if Mars once had water, then Mars may once have been much more Earth-like than it is today. And where there is water… scientists immediately start asking:
“Did life ever happen there?”
That question alone makes Mars endlessly fascinating.
Mars Might Have Hosted Alien Life
Let’s be honest: The main reason everyone gets excited about Mars is because of one possibility: Maybe something lived there. Probably not little green aliens building laser guns. More likely:
- microbes
- bacteria
- tiny primitive life forms
- Reason for Mars Exploration: The possibility of finding evidence of past life on Mars.
- Significance of Discovering Life: It would be a groundbreaking discovery, fundamentally changing our understanding of existence.
But still. If scientists ever found proof that life once existed on Mars, it would be one of the biggest discoveries in human history. It would mean:
life happened more than once in the universe.
That would completely change how we view existence. So every Mars mission is partly driven by one huge question: “Did weird space germs ever live there?” And frankly, that’s exciting.
It Has the Biggest Volcano in the Solar System
- Olympus Mons Size: About 13.6 miles high and roughly 370 miles wide.
- Comparison with Mount Everest: Olympus Mons is about 2.5 times taller than Mount Everest.
Mars is home to Olympus Mons, the largest volcano in the solar system. It is:
- about 13.6 miles high
- roughly 370 miles wide
For comparison: Mount Everest is only about 5.5 miles tall. Olympus Mons is so huge it would absolutely dominate Earth beyond all reason. Standing at its base, you probably wouldn’t even realize you were looking at a mountain because it’s too big to properly comprehend.
Mars apparently saw Earth’s volcanoes and said: “Cute. Watch this.”
It Has a Canyon Bigger Than Ours
- Valles Marineris Size: One of the largest canyon systems in the solar system.
- Valles Marineris Length: Roughly 2,500 miles long, nearly the width of the United States.
- Valles Marineris Depth: Over 4 miles deep in some places.
Mars also has Valles Marineris, one of the largest canyon systems in the solar system. It stretches roughly:
2,500 miles long
That’s nearly the width of the United States. And in places it’s:
- over 4 miles deep
Basically, Mars took the Grand Canyon and made it absurd. Because subtlety is not Mars’s thing.

It’s the Most Realistic Colonization Target
- Mars Colonization Potential: Mars is considered the most viable option for human colonization within the solar system.
- Mars Challenges: Mars presents significant challenges for colonization, including extreme cold, radiation, lack of breathable air, and toxic dust.
- Mars Advantages: Compared to other planets in the solar system, Mars is the least inhospitable option for human habitation.
Out of every planet in the solar system, Mars is generally considered humanity’s best shot for colonization. Not because it’s nice. Mars is still:
- freezing cold
- covered in radiation
- lacking breathable air
- full of toxic dust
But compared to the alternatives? It’s fantastic. Because the other options are:
- Mercury (burn to death)
- Venus (burn and crush to death)
- Jupiter (fall forever into gas death)
- Neptune (freeze in hurricane death)
Mars is the least horrifying option. Which is why so many scientists and companies dream of sending humans there. Mars is basically:
“the fixer-upper of the solar system.”
It Has Two Weird Potato Moons
- Mars’s Moons: Phobos and Deimos.
- Moons’ Appearance: Small, irregularly shaped, and asteroid-like.
- Phobos’s Orbit: Slowly spiraling inward towards Mars.
Mars has two moons:
- Phobos
- Deimos
And both of them are weird little lumpy asteroid-looking rocks. They don’t even look like proper moons. They look like someone forgot to finish making them. Phobos is especially strange because:
- it’s slowly spiraling inward
- and may eventually crash into Mars or break apart
Even Mars’s moons are dramatic.
Mars Has Dust Storms That Cover the Whole Planet
- Global Impact: Dust storms on Mars can cover the entire planet.
- Duration: These storms can last for weeks or even months.
Mars experiences dust storms so massive they can:
cover the entire planet.
Not joking. Entire. Planet. These storms can last for:
- weeks
- or even months
Imagine a dust storm so big it swallows an entire world. Mars weather does not play around.
It Feels Reachable
- Attainability of Mars Exploration: Mars is far but reachable, making it feel attainable for human exploration.
- Human Exploration Potential: Robots have already reached Mars, and humans might follow soon.
- Psychological Appeal: Mars represents the next frontier for human exploration, fueling our desire to explore.
Another reason Mars fascinates us is psychological: It feels attainable. Mars is far, but not impossibly far. It’s close enough that:
- robots can get there
- humans might get there soon
- and we can realistically dream about exploring it
Unlike distant exoplanets or far-off galaxies, Mars feels like the next step. It’s the frontier just beyond our doorstep. And humans love frontiers.
Mars is Fascinating
Mars fascinates everyone because it feels like the most Earth-like, mysterious, and potentially explorable planet in our solar system. It may once have had water, possibly hosted life, and could someday become humanity’s first off-world home.
It combines:
- mystery
- science
- exploration
- and just enough familiarity to make us dream big.
So the next time someone talks about Mars, remember: It’s not just a dusty red planet. It’s a frozen ancient world that may hold clues about alien life, humanity’s future, and the history of planets themselves.
Also it has giant volcanoes, planet-wide storms, and weird potato moons. Which frankly doesn’t hurt.
This article is part of the NerdBeach series: How Our Solar System Works



