Even a Shuttle enthusiast like Cabana has to admit-and does, reluctantly-that the venerable craft has proven with more than sufficient repetition that man can achieve low earth orbit.

即使是像卡巴纳这样的航天飞机热心家也不得不承认—-而且确实，不情愿地- - -这个珍贵的太空船已经绰绰有余地证明人类可以抵达近地轨道。

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Before man could launch into orbit and to the moon, he rode rocket sleds on the ground first.

在人类可以发射火箭到太空和月球之前，美国空军上校约翰·斯塔普首次在陆地上乘坐了一回火箭撬。

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And not just man. The whole Earth was made from dust particles in orbit around the primitive sun, as were all the other solid objects in the solar system.

而且不仅仅人是尘土造的，包括地球在内的、整个太阳系的固体物质都是由环绕早期太阳的尘埃造的。

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The number of man-made objects in Earth orbit has been growing each year.

VOA: special.2009.04.01

An estimated half million pieces of debris litter the Earth's orbit as a result of man's exploration of space.

VOA: standard.2010.07.24

America put a man in space, put a man in orbit, put a man on the moon, created the world's first reusable spacecraft, sent unmanned probes to other planets and led the world in making important scientific discoveries outside the Earth's atmosphere.

FORBES: NASA Needs A Mission

The Russians responded by sending off Yuri Gagarin in 1961 to be the first man in orbit.

ECONOMIST: The race to the moon

It is true that the Soviets won some of the early heats of the space race, including being the first to put a man into orbit.

FORBES: The History Challenged Tea Party Goes 'Jaywalking'