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Sun-Core Cube: 1 Million Years → Today → Red Giant Phase

1. Early Cube (1 million years after fusion starts)

Total mass: 150,000 kg (150 tonnes)

Hydrogen (106,500 kg)

Room-temperature gas balloon:

  • Volume: 1,270,844 m³
  • Cube side: 108.32 m

Cryogenic liquid:

  • Volume: 1,503 m³
  • Cube side: 11.46 m

Helium (40,500 kg)

Room-temperature gas balloon:

  • Volume: 243,400 m³
  • Cube side: 62.44 m

Cryogenic liquid:

  • Volume: 324 m³
  • Cube side: 6.87 m

2. Current Cube (today)

Total mass: 150,000 kg (150 tonnes)

Hydrogen (53,250 kg)

Room-temperature gas balloon:

  • Volume: 635,422 m³
  • Cube side: 85.97 m

Cryogenic liquid:

  • Volume: 752 m³
  • Cube side: 9.09 m

Helium (93,750 kg)

Room-temperature gas balloon:

  • Volume: 563,425 m³
  • Cube side: 82.59 m

Cryogenic liquid:

  • Volume: 750 m³
  • Cube side: 9.09 m

3. Future Cube (red giant phase – all hydrogen burned)

Total mass: 147,000 kg (helium only)

Hydrogen: 0 kg → No balloon

Helium (147,000 kg)

Room-temperature gas balloon:

  • Volume: 883,451 m³
  • Cube side: 95.95 m

Cryogenic liquid:

  • Volume: 1,176 m³
  • Cube side: 10.56 m

Quick Notes for Your Article/Video

  • • The early cube has the biggest hydrogen balloon (bigger than a football field!) because almost all the fuel is still hydrogen.
  • • By today, the hydrogen balloon has shrunk and the helium balloon has grown — exactly what the Sun has been doing for billions of years.
  • • In the far future, it’s all helium — no more hydrogen balloon at all.
  • • Cryogenic cubes are tiny by comparison (truck-sized or a bit bigger) because liquids are way denser than gases.