Nhà thám hiểm Không gian 3D

Interstellar Explorer 3D: venture beyond solar system to discover alien worlds! Navigate interstellar space: stars light-years apart (Proxima Centauri 4.24 ly, Alpha Centauri 4.37 ly), nebulae (stellar nurseries beautiful but navigation hazards), black holes (extreme gravity warps space-time - avoid event horizon!), asteroid fields, rogue planets. Learn propulsion tech: (1) Chemical rockets (current tech, too slow for interstellar - centuries to nearest star!), (2) Ion drives (continuous low thrust, years acceleration), (3) Nuclear pulse (Project Orion concept), (4) Fusion ramjet (Bussard design - scoop interstellar hydrogen), (5) Antimatter engines (theoretical, immense power), (6) Light sails (Breakthrough Starshot - lasers push sail to 20% speed of light!).

Time dilation effects: at near-light speeds, time slows relative to Earth (twin paradox)! Discover exoplanets: Hot Jupiters (gas giants close to stars), Super-Earths (rocky planets larger than Earth), Ocean worlds (subsurface seas like Europa), Tidally locked planets (one side always faces star). Life search: habitable zones (not too hot, not too cold), biosignatures (oxygen, methane combinations suggest life), technosignatures (SETI searches for alien civilizations).

Challenges: radiation (cosmic rays, solar flares without magnetosphere protection), micrometeorites (space debris at high velocity = bullets!), long-duration missions (decades to centuries), communication delays (messages take years), resource scarcity (manufacture/repair everything). Phù hợp astronomy enthusiasts, sci-fi lovers, aspiring astrobiologists!