🚨 Decision Point #1

Freeze or Squeeze?

GET 57:41 | Two Hours After the Explosion

⚠️ The Situation

Two hours ago, you watched an oxygen tank tear apart the Service Module. Now the damage is closing in on the crew:

Command Module "Odyssey" is losing power and oxygen rapidly—its fuel cells are dying
Cabin heat comes from electrical systems—must shut down to save batteries for re-entry
Temperature in a powered-down CM will drop to near freezing (38°F)
Lunar Module "Aquarius" was designed for 2 people for 2 days
The crew needs life support for 3 people for almost 4 days to get home

🤏 SQUEEZE

Move to Lunar Module "Aquarius"

Lunar Module interior showing cramped quarters — Lunar Module: ~160 cubic feet, designed for 2

✓ Advantages

Power available from LM batteries
Life support systems functional
Oxygen reserves sufficient for journey
Can survive the nearly-4-day trip home

✕ Disadvantages

Extremely cramped (~160 cubic feet for 3 people)
Designed for 2, now holding 3
Moving disturbs others—no one can sleep
Still cold—the cabin will fall to around 49°F, condensation on walls
Power and water still very tight

🥶 FREEZE

Stay in Command Module "Odyssey"

Command Module interior showing spacious crew cabin — Command Module: ~210 cubic feet

✓ Advantages

More spacious (~210 cubic feet)
Familiar systems and controls
Only module with heat shield for re-entry
More comfortable for crew

✕ Disadvantages

No power = no heat, crew will freeze
Limited oxygen remaining
No active life support systems
Crew will not survive 4 days

🤔 WHAT SHOULD THE CREW DO?

👆 Choose one of the options above 👆

NASA's Decision

✓ SQUEEZE into Lunar Module "Aquarius"

About two hours after the explosion, at GET 57:41, CAPCOM Jack Lousma radioed up: "We'd like you to start making your way over to the LM now." Lovell and Haise brought Aquarius to life, and by GET 58:40—roughly three hours after the bang—Odyssey was completely powered down. The LM, designed as a Moon lander for two astronauts for two days, would now serve as a lifeboat for three astronauts for nearly four days.

The quarters were so cramped that when one crew member moved an arm or leg, it disturbed the others. Sleep became nearly impossible. Moisture from their breath condensed on the cold walls, creating a damp, freezing environment.

"We were as cold as frogs in a frozen pool, especially Jack Swigert, who got his feet wet and didn't have lunar overshoes." — Jim Lovell, in NASA's Apollo Expeditions to the Moon

Why NASA chose SQUEEZE: Survival was the only priority. The Lunar Module had power, oxygen, and life support. The Command Module had none. The choice was uncomfortable but clear: discomfort beats death.

Outcome: The LM kept all three astronauts alive for the entire journey home. Despite the cold and cramped conditions, "Aquarius" earned its place in history as the lifeboat that saved Apollo 13.

📚 Sources for Skeptics

Would you have stayed in Odyssey? Don't just take our word for it—questioning the answer is exactly how engineers think. Check the mission record yourself:

Apollo 13 Flight Journal — every radio call between the crew and Houston, annotated day by day (see Day 3, "Aquarius Becomes a Lifeboat")
Apollo 13 in Real Time — replay the whole mission with real Mission Control audio, synced to the second
Apollo 13 Mission Report (PDF) — NASA's official engineering report: what broke, and exactly how they got home