🛰️MISSION ATLAS — Physics Games Portfolio
Upper-secondary physicsAstronomy-themedMIT License
Interactive science portfolio PUBLIC BETA

Playable physics, framed by Big Ideas in Astronomy.

Mission ATLAS is a growing collection of browser-based physics games designed for classroom use. Each mission turns a common misconception into a decision problem: students must calculate, predict, test, and revise. It now spans lunar mechanics, orbital motion, Mars surface and landing physics, spacecraft electrical systems, planetary defence, a comet touchdown, exoplanet detection, and a four-part quantum saga — from the photoelectric effect to Compton scattering.

⚠️ Public beta. These games are playable and the physics is verified, but scoring, interface polish, and difficulty are still being tuned. Greek and Italian translations are planned for a later release — the current versions are in English.

Live GitHub Pages URL
https://physicsplay.github.io/Astrojourneys/
13
Playable missions
3
Curriculum contexts
100%
Browser-based
More
Missions coming

Current games

Use the filters to scan by physics family. Each card links directly to the playable HTML file and highlights the physics focus, misconception target, and astronomy connection.

Game 01

🌙 Lunar Rescue

MoonLanding

Guide an emergency cargo capsule to a lunar outpost, managing thrust, attitude, descent speed, and fuel under lunar gravity with no atmospheric drag.

Physics focusNewtonian mechanics, thrust components, lunar gravity, fuel consumption, work–energy, delta-v.
Misconception target"There is almost no gravity on the Moon" and "if the engine is off, motion stops."
Big Ideas in Astronomy7.7 Earth–Moon system · 4.2 Gravitation dominates on large scales.
Game 02

🛰️ Orbital Rendezvous

OrbitDocking

Phase, approach, and dock safely with a damaged station module by matching relative motion instead of chasing directly.

Physics focusCircular/orbital motion, gravitation, relative velocity, burn timing, safe closure.
Misconception target"There is no gravity in orbit" and "just thrust straight at the station."
Big Ideas in Astronomy4.2 Gravitation dominates · 11.1 Human-made debris orbits Earth.
Game 03

🪂 Mars Landing Window

MarsEDL

Choose parachute and retro-burn windows for a Mars cargo landing, balancing drag, gravity, thrust, drift, and stopping distance.

Physics focusNewton's 2nd law, drag, gravity, dynamic pressure, thrust, mechanical energy.
Misconception target"Lower gravity makes Mars landing easy" and "a parachute is enough."
Big Ideas in Astronomy7.5 Terrestrial planets · 5.8 Spacecraft study the Solar System.
Game 04

🧑‍🚀 Mars EVA Traverse

MarsSurface

Plan an EVA route and pace to reach shelter with enough science, while managing traction, time, battery, oxygen, and suit power.

Physics focusSlopes, friction, traction limits, work, power, energy, route trade-offs.
Misconception target"Lower gravity always makes movement easier."
Big Ideas in Astronomy7.5 Terrestrial planets · 4.4 Astronomy uses observations and models.
Game 05

⚡ Habitat Blackout

CircuitRescue

Reroute emergency habitat power after a cascading fault by comparing line resistance, fuse margin, load profiles, and battery reserve.

Physics focusOhm's law, power, current, series/parallel reasoning, voltage drop, reserve logic.
Misconception target"Current gets used up" and "the shortest reroute is always best."
Big Ideas in Astronomy4.6 Astronomy benefits from and stimulates technology · 5.8 Spacecraft exploration.
Game 06

☄️ Asteroid Deflection — The 31.5 Rule

New
ImpulsePlanetary defence

Run the NEO Defense desk. First fail the arcade panic-mode by hand, then win with one computed burn: a whisper of Δv, years early, moves an asteroid a whole planet aside.

Physics focus (ONE relationship)Drift rule of planetary defence: d = 31.5 · Δv · t (d in km, Δv in mm/s, t in years). Momentum / impactor β stay as stated flavour.
Misconception target"You need a huge blast at the last second." Backwards: a tiny push delivered years early is amplified by time into a huge miss distance.
Big Ideas in Astronomy11.2 Near-Earth objects are monitored · 7.8 Asteroids are remnants of Solar System formation.
Game 07 · ATLAS #09

☄️ Comet Lander: Rosetta's Philae

New
Comet 67PFree fall

Set Philae's descent onto comet 67P, where gravity is a whisper (g ≈ 10⁻³ m/s²). Predict the fall time and touchdown speed before you release — a side-by-side Earth drop shows how alien this world is.

Physics focus (ONE relationship)Uniform acceleration: h = v₀t + ½gt² with g ≈ 10⁻³ m/s². Predict fall time and landing speed; commit the number before the drop.
Misconception target"Almost no gravity means landing is trivial." Falls take minutes, and even a gentle touchdown speed can bounce a lander off the surface — Philae did, twice.
Big Ideas in Astronomy7.8 Comets are icy remnants of Solar System formation · 5.8 Spacecraft exploration.
Game 08 · ATLAS #10

🔭 ExoCase: Space Detective — KELT-3b

New
ExoplanetTransit

Work a real exoplanet case file. From the tiny dip in a star's brightness as KELT-3b crosses its face, deduce the planet's size — then use Kepler's third law to place its orbit.

Physics focus (ONE relationship)Transit photometry: the fractional light dip equals the area ratio, δ = (R_p/R★)². Kepler's third law is given for the orbital step.
Misconception target"A bigger dip means a bigger planet." The dip fixes the planet's size relative to its star — the same planet dims a small star far more than a giant one.
Big Ideas in Astronomy4.5 Light carries information about its source · 7.6 Exoplanets are detected indirectly.
Game 09

🌋 Lunar Lava Tube Scout — The Echo Rule

New
WavesRadar

Map a hidden lava tube at Marius Hills with ground-penetrating radar: time each echo, halve the round trip, and prove the cavern's rock ceiling can shield a habitat — before a moonquake shifts the site.

Physics focus (ONE relationship)Echo ranging: d = v·t/2 — depth is half the round-trip path. Signal speed per material (v = c/√εᵣ) is given; the frequency ↔ penetration ↔ resolution trade-off stays as stated flavour.
Misconception target"The echo time is the depth." The pulse travels down AND back — forget the ÷2 and every cave comes out twice too deep.
Big Ideas in Astronomy7.7 Earth–Moon system · 4.4 Astronomy uses observations and models.
Featured saga · four playable episodes

🌟 The HELIOS Incident — a quantum saga in four cases.

One continuous story across four games, sharing a cast — Dr. Noor Haddad and the station AI, SPARK — and a single derelict ship. Each episode isolates one quantum relationship and drives it through a full predict → invert → crisis arc. Play them in order, or drop into any single case.

This tetralogy replaces the earlier single "Quantum Rescue" build, which packed four relationships into one file. Splitting them keeps every game to a single equation — one law, learned properly.

Episode 1

🔑 Quantum Rescue: The Photoelectric Key

Photoelectric

Unlock the ship's doors by ejecting photoelectrons: pick a wavelength whose photon energy clears each metal's work function.

One relationshipPhotoelectric effect: K_max = 1240/λ − W (energies in eV, λ in nm).
Episode 2

🌡️ Star Autopsy: The Wien Files

Blackbody

Run a temperature autopsy on cooling bodies and live stars from the peak wavelength of their thermal glow.

One relationshipWien's displacement law: λ_max = 2.90×10⁶ / T (λ_max in nm, T in kelvin).
Episode 3

👻 Ghost Particle: The de Broglie Gate

Matter waves

Tune an electron gun so each electron's matter wavelength matches a diffraction lock — one particle at a time, still a wave.

One relationshipde Broglie wavelength: λ = 1.227/√K (λ in nm, electron energy K in eV).
Episode 4 · Finale

⚖️ Recoil: The Compton Verdict

Compton

Put the photon on trial: prove light carries momentum by measuring how much a scattered X-ray's wavelength lengthens.

One relationshipCompton shift: Δλ = 2.43 (1 − cos θ) pm.
Portfolio roadmap

More missions planned.

This landing page is intentionally expandable. New mission cards can be dropped into the same grid without redesigning the whole site.

🌞 Solar Storm Shelter
Radiation, shielding, EVA abort decisions, and crew safety under a solar particle event.
🛸 Debris Avoidance Burn
Conjunction alerts, relative motion, small early burns to protect a station from orbital debris.
🌍 Return Corridor
Atmospheric re-entry, heat load, g-forces, skip entry vs. commit, communication blackout.