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Stack #71061
Flora - Early Astronomy & Space Exploration Vocabulary
| Question | Answer |
|---|---|
| the path followed by a satellite as it revolves around another object | orbit |
| the apparent westward motion of the planets with respect to the stars | retrograde motion |
| an object revolving around another object | satellite |
| an instrument that is sent into space to gather information and transmit information back to Earth | space probe |
| the model in which the Earth and the other planets orbit the sun | heliocentric model |
| the average distance between the Earth and the sun | astronomical unit |
| the model in which the moon, sun and the other planets orbit the Earth | geocentric model |
| an artificial structure designed as a place for humans to live and work in outer space | space station |
| an oval shape | ellipse |
| the science that studies the universe | astronomy |