Summary
Launch vehicles propel the spacecraft, orbiters gather observations from orbit, landers touch down on celestial bodies, and rovers travel across the terrain to conduct experiments.
Key Points
4 points1
Launch vehicles provide the thrust needed to escape Earth’s gravity.
2
Orbiters remain in stable orbits to monitor weather, surface features, and atmospheric conditions.
3
Landers are designed to safely touch down and analyze the composition of a planet or moon.
4
Rovers are mobile laboratories that move across the surface, collecting samples and sending data back to Earth.
New Words to Learn
7 wordsthrust
the strong push that moves a rocket upward
gravity
the force that pulls objects toward the ground
stable orbit
a regular path around a planet that doesn’t crash
celestial bodies
objects in space like planets, moons, and asteroids
composition
what something is made of
laboratories
places where scientists do experiments
samples
small pieces taken for study
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