At Space Camp, trainees can earn their Space Exploration badge as they build and fire model rockets.
在太空营，学员可以制作和发射火箭模型，以此获得太空探索徽章。
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There are variations on this model of course, but the common denominator is always the idea of creating a shopping space that will get people to shop in the city without needing their cars.
The universe encompasses all of space and time we know, so it is beyond the realm of the Big Bang model to postulate what the universe beyond our horizon is.