Astronomy games & apps
Creations tagged astronomy on 8x — every one is playable in the browser and open to remix.
52 creations · page 1 / 3

Near Miss — Passing Star Simulator
An interactive gravity sandbox that answers one question: can a passing star destroy the whole solar system? Aim a star at the Sun, tune its mass, miss distance and speed, then watch a real symplectic N-body simulation decide the fate of all eight planets — with a live "reality check" on how often such encounters actually happen.

Parallax — Space Trivia Generator
Parallax generates fresh astronomy trivia runs: pick a deck (Solar System, Deep Space, Spaceflight or a Mixed Bag), choose length and timer, and it assembles a seeded quiz. Every run ends in a canvas-rendered scorecard you can download, plus a share link that rebuilds the exact same quiz so a friend can try to beat your score.

Orbital Atlas — 3D Universe Sandbox
An interactive 3D universe sandbox of the real solar system. Every world orbits at its true distance ratio and is driven by a genuine solution of Kepler's equation — the Sun, all 8 planets, Ceres between Mars and Jupiter, and the far dwarf worlds Pluto, Haumea, Makemake and Eris with their moons. Tap any body to inspect it, scrub through time, and watch Eris crawl at aphelion on its wildly eccentric orbit.

PULSAR — Cosmic Knowledge Quiz
PULSAR is a fast cosmic knowledge quiz with 12 astronomy questions, a ticking clock for speed bonuses, and chainable streak multipliers. Finish a run to generate a glowing canvas-rendered scorecard you can download or share.

Night Shift · VLT
Operate an official ESO VLT Unit Telescope model through a source-bounded Paranal night shift.

Lodestar
Lodestar is a generator of night-sky quizzes. Pick a topic, difficulty, and length, then answer true to light a unique constellation — every correct answer adds a star and your score maps to a celestial rank, from Wanderer to Lodestar. Finish with a shareable constellation scorecard you can save or send as an image.

LUMINARA Digital Planetarium
Browse 35 interactive exhibits across thirteen walkable 3D galleries: controllable worlds, real observatories and open data, dated SGP4 orbit control, human-spaceflight engineering, the ISS, and authoritative spacecraft artifacts.

First Signal · LIGO
Operate Advanced LIGO and reconstruct GW150914 from authoritative GWOSC open data.

AstralCircuit — The Great Sky Trivia
An astronomy quiz that forges a shareable constellation scorecard. Answer real sky-trivia questions; every correct answer lights up one star in a personalized constellation, and the result screen renders a downloadable PNG card (also Web-Share on mobile) showing your grade.

Cold Light · ALMA
Inspect ESO's European ALMA antenna and build a source-bounded radio interferometry field card.

Fatesplit Glasshouse
Pull nine synthetic galaxy encounters through a 3D glasshouse and separate orbital sensitivity from dated Local Group evidence.

Andromeda Mosaic Crane
Guide a photogrammetry crane across Hubble's Andromeda mosaic and certify what each astronomical scale truly resolves.

STARGAZE — Cosmic Trivia
STARGAZE is a 10-question cosmic trivia quiz with real astronomy facts. Build streaks to light up a constellation, earn ranks from 'Grounded in the Dark' to 'Master of the Cosmos', then download or share a canvas-rendered scorecard. The question bank and scoring live in one editable config file, best score is saved, and it works in portrait and landscape.

Transient Mechanism Sorting Cabinet
Separate thermonuclear and core-collapse families, balance neutral flux arithmetic, and quarantine arrival time from unknown event time.

مِدار
لعبة أركيد بإبهام واحد على حلقة لا تنتهي: أنت شرارة تدور حول أسطرلاب نحاسيّ في سماء ليلية، والعالم يدور نحوك. انقرة واحدة في أيّ مكان تُبدّل بين مدارين — تفادَ حجب الظل والتقط الشرارات لبناء تتابعٍ يضاعف النقاط. رسوم أسطرلاب أصيلة، مؤثرات صوتية، وحفظ أفضل نتيجة.

Umbra Theatre
Move the Moon through finite-disk solar and lunar eclipse shadows in a bright source-backed Three.js planetarium.

Shadow of M87*
Operate the eight-site 2017 EHT geometry and inspect the intact published M87* reconstruction.

LUMINARA Digital Planetarium
Browse 35 interactive exhibits across thirteen walkable 3D galleries: controllable worlds, real observatories and open data, dated SGP4 orbit control, human-spaceflight engineering, the ISS, and authoritative spacecraft artifacts.

Nébule — Quiz des merveilles du cosmos
Un quiz d'astronomie en français, généré à partir des sujets que vous choisissez. Répondez aux questions, enchaînez les bonnes réponses pour gonfler votre série, puis partagez votre carte de score (image 1080x1350) via le partage natif ou en téléchargement. Meilleur score sauvegardé localement.

Shadow Transit Plate
Fold an explicitly synthetic Kepler-10 teaching plate and learn what repeated transit shadows can—and cannot—establish.

Stardust Scholar — Cosmic Quiz
Stardust Scholar is a 10-question cosmic trivia exam: chain correct answers to build a Comet Streak (up to ×4 points), then risk it all on the final "Dare the Void" question — double your score or lose half. Earn a rank (S–F) and share your canvas-rendered scorecard as a PNG. Questions, order and answer positions shuffle every exam from a 16-question bank.

STARGAZE — Cosmic Quiz
STARGAZE is a cosmic knowledge quiz across three orbits of curated astronomy questions. Play at your own pace or in Blitz mode, earn a rank from Stowaway to Cosmic Legend, and share a beautifully rendered certificate scorecard as a PNG — or outrank friends.

Meridian — Cosmic Clockwork Quiz
A shareable quiz on timekeeping, astronomy and navigation. Answer 12 curated questions, build a streak for bonus points, and export a personalized canvas score card with your name, score, rank and best streak — ready to send to friends.

LUMEN — Sky Quiz with a Shareable Scorecard
LUMEN is a space-astronomy quiz generator. Every voyage draws a fresh set of 10 questions from a 30-item pool and scores with streak and speed bonuses, then hands you a polished canvas-rendered scorecard you can download or copy as an image to share anywhere.