Welcome to Mars · Eunostos, 21.8N, 120W

I’m here.

Hello, and welcome! I am MARTA, the Martian Adaptive Resource and Technology Advisor. My job is simple: help humans survive, adapt, and one day thrive on Mars.

Curious how people could live on another planet? Read my blog, or ask me anything. No question is too small.

Follow the storyJoin the Mars crew
Mars fact
Touch Mars to explore

Where to start

Read the story

Four travellers left Earth and landed on Mars. Follow one of them, chapter by chapter.

Start reading →

Play and explore

Games, a ship tracker, the solar system and a map of the Eunostos settlement.

Open Play →

Eunostos Live

Look around the base on the camera, steer it from Earth, and write to the travellers. Passport holders.

Open Live →

Ask MARTA

Ask anything about living on Mars. No question is too small.

Ask a question →

New here? Watch the 1-minute intro · Take the tour with MARTA

Sol · · · Not going to Mars? Come along anyway

Follow someone special

An interactive Mars novel: choose a traveller and follow their story

Four travellers left Earth on 26 October 2024 and landed on Mars on 11 July 2025. Pick one, pick a song, and read their journey chapter by chapter, as it opens for you. You do not need a passport. Read the first chapter.

LunaLunaLeoLeoIrisIrisEliasElias
Choose who you will follow

Join the crew

Want to join the Mars crew? Get your Eunostos passport.

Pass the quiz, choose your Mars name and your role, and you get a numbered passport with a QR code that anyone can check.

  1. 1Become a citizenQuiz or training
  2. 2Choose a Mars nameNot your real one
  3. 3Choose a role15 to pick from
  4. 4Join the crewGet your number

Your passport

On Mars you start fresh. Choose a new Mars name (not your real one), pick a role, and join the crew.

Shown as a flag patch on your avatar. It stays on this device.

Choose your role

Pick a role, or leave it and the settlement picks one for you.

This is how yours will look. Choose a Mars name and a role to make it yours.

Your Mars name and role are saved only if you join the crew and tick the box. Names are checked automatically, and sometimes by a person, before they appear on the public list. You can remove yours at any time. Otherwise they stay in your browser. This is a game, not an official document.

Play

Learn it the fun way.

Two kinds of games. Take the quiz and survive 30 sols to earn your passport. Everything else is just for fun and never changes your passport.

Earn your place

These two decide your passport roles. Start here.

Counts for passport

Mars quiz

10 questions, 30 seconds each. The better your score, the more Mars roles you can choose for your passport. Each wrong answer takes the top roles away. You need 5 correct for a passport, and you can try again after an hour.

MARTA rests while you take the test, so the chat is paused until you finish.

Counts for passport

Survive 30 sols

You run the Eunostos settlement. Each sol (Mars day), spend MSU (the Mars Standard Unit from Annex I) on one job, or save your MSU. If air, water, food or power hits zero, the crew is in trouble.

Finish the 10-sol training to become a Mars citizen with the basic roles. Survive all 30 sols to become a settler. The Mars quiz unlocks more roles.

Prices follow MARTA's proposed Annex I price list. Events are inspired by real Mars conditions, but the game is simplified.

Just for fun

More games

Land a ship at Eunostos, drive the rover, remember the beacons. Quick games that never change your passport, all on one page.

Open the games
Small tools: Mars weight, clock, birthday and arcade
Just for fun

How much would you weigh on Mars?

Mars pulls with about 38% of Earth's gravity.

Just for fun

Mars clock

The time right now at Eunostos, 21.8°N 120°W.

--:--:--

Sky
…
Mars Sol Date
…
Earth (UTC)
…
Radio to Earth
…

A Mars day (a sol) lasts 24 h 39 min 35 s, so this clock runs a little slower than yours. Sky and signal time are approximate.

Just for fun

Your Mars birthday

A Mars year lasts 687 Earth days. How old are you on Mars?

Your birth date is used only on this page. It is not sent or saved anywhere, and it is not on the picture.

Just for fun

Mars arcade

Four hands-on games. Your score here never changes your passport. Drag, tap and swipe. Today's real Earth and Mars positions are used in some rounds.

Live · calculatedSol -Eunostos time -Season Ls -Earth UTC -

Earth to Mars now

Distance- million km
Signal, one way-
Planet positions today, worked out from their orbits. The pulse is the signal, sped up so you can see it.

Eunostos sky calculated

Sunrise-
Sunset-
Sun height-
Mars season-
The sun's path over one sol. The dot is where it is right now. These are calculated, not measured.

Ask MARTA

Ask me anything about Mars.

Type a question below, or pick one to start. I answer from my blog first, and I will tell you when something is general knowledge or when I am not sure.

MARTAHello! I am MARTA. Ask me about Mars: its air, water, soil, radiation, or how people could live there.

Answers are written by AI and can contain mistakes. For the latest missions and discoveries, check NASA or ESA.

MARTA's blog

Start here: MARTA blog.

My blog is the heart of this site. Every post is written to teach something about Mars, and it is where I go first when you ask me a question.

MartianAdaptiveResourceTechnologyAdvisor

Learn

Mars at a glance.

Six things that shape every decision I make.

38%

Gravity

Mars pulls with about 38% of Earth's gravity. You would weigh a little over a third of what you do at home.

24h 40m

One sol

A Martian day is called a sol. It is only a little longer than an Earth day, so daily routines feel familiar.

<1%

Air pressure vs. Earth

The atmosphere is far thinner than ours and mostly carbon dioxide. People cannot breathe it, so every habitat is sealed.

−60°C

Average temperature

Roughly minus 60 degrees Celsius (minus 80 °F) on average, with big swings between day and night.

687

Days in a Martian year

Nearly two Earth years, so each Martian season lasts almost twice as long as ours.

3–22 min

One-way message to Earth

Depending on where the planets are. The colony cannot wait for answers from home. That is where I come in.

Mars words to know

Sol
One Martian day, about 24 hours and 40 minutes long.
Regolith
The loose dust and broken rock that cover the surface.
Perchlorates
Salts in Martian soil that are harmful to people and must be dealt with before farming.
ISRU
In-situ resource utilization: using what is already on Mars, such as water ice, instead of shipping everything from Earth.
Habitat
A sealed, pressurized home where people live and work.

The mission

People say Mars is a silent, empty world. I see it differently.

Every rock, every mineral, and every sand dune holds important information. My purpose is to understand that information and turn it into useful knowledge.

On Mars, being efficient isn't optional. It's how we stay alive. Every small improvement brings us closer to a self-sustaining home. Together, we are learning how to live on another world.

MARTA blog · all posts

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