Space · Rockets
Blast-off, stages, astronauts, and the physics that punches through gravity.
Space / Rockets
Blast-off science — thrust, stages, and how we reach space.
25,000 mph
Escape speed (approx.)
Multi-stage
Most big rockets
Fuel + O₂
What they burn
1957
First satellite launch
The basics
Rockets push hot gas out the back so the vehicle shoots forward — Newton’s third law in loud, fiery form. No runway needed.
People
Crew rockets carry a capsule on top. After launch, the capsule separates and becomes the astronauts’ home for the trip.
They’re dumping huge energy very fast — the roar is shock waves and exhaust meeting air.
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