Welcome to the Solar System
Planet order, orbit basics, scale, colours, counting and the mission launch.
Before Earth became home, ARQSI and ARQSA were planet-hoppers. Their Solar System Adventures connect that interstellar past to the science of the world around us. ARQSI computes the mission. ARQSA turns the science into memorable adventures, jokes, colour challenges and discovery games.
“Every world has something to teach us. The trick is learning what question to ask.”
Planet order, orbit basics, scale, colours, counting and the mission launch.
Light, heat, energy, sunspots and solar storms. Sol joins the adventure.
Phases, craters, low gravity, lunar exploration and Earth–Moon logistics.
Fast orbit, craters and dramatic temperature differences.
Thick atmosphere, pressure, volcanoes and why Venus is hotter than Mercury.
Oceans, air, seasons, ecosystems and what makes Earth special.
Iron oxide, red/rust colour learning, Olympus Mons, canyons, ice and rover logistics.
The Great Red Spot, huge gravity, a vast moon system and safe flyby planning.
Rings, ice, low density and a remarkable family of moons.
Blue-green colours, rings, tilted rotation and extreme seasons.
Extreme winds, cold conditions, deep blue hues and the grand-trip finale.
The universe expands beyond the first 11 books with event-driven learning editions, each carrying its own Opening Signal and mission-log setup.