NASA at Home: Rockets in Motion – Newton’s Third Law | Summary and Q&A

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March 24, 2021
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NASA at Home: Rockets in Motion – Newton’s Third Law

TL;DR

NASA is building the Space Launch System rocket as part of the Artemis program to land the first woman and the next man on the moon in 2024.

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Questions & Answers

Q: How does a rocket engine work in space?

Rocket engines burn fuel and convert it into hot gas, creating thrust that propels the rocket forward. Unlike jet engines, rocket engines don't need air to work.

Q: What is the purpose of the Space Launch System rocket?

The Space Launch System rocket is being built to carry heavy payloads, such as astronauts or robotic probes, to the moon in one single launch, making it a crucial part of the Artemis program.

Q: How do rockets move in space without anything to push against?

Rockets work based on Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. Even without anything to push against, rockets expel thrusters one way, causing the vehicle to move in the opposite direction.

Q: Why is exercise important for astronauts in space?

Exercise is crucial for astronauts in space to prevent muscle atrophy and weakened bones caused by microgravity. Regular exercise helps maintain overall health and prevents conditions like osteoporosis.

Summary & Key Takeaways

  • NASA is constructing the Space Launch System rocket, which will be used for the Artemis program to land astronauts on the moon in 2024.

  • The rocket is being assembled from different parts in all 50 US states and several European countries.

  • There are two main types of rocket engines: solid fuel and liquid fuel. NASA's Space Launch System uses four liquid-fueled engines and two solid rocket boosters.

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