None of the objects yet discovered by NASA's Near earth objects program have a high probability of hitting the earth — though one known as 1950 DA will come extremely close in 2880.

有一些还未被美国宇航局近地天体计划发现的小行星，很有可能会撞击我们的地球，一个被称为1950 DA的现象很有可能在2880年出现。

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Thousands of near-Earth objects (asteroids and comets) will have been analyzed by telescopes on the Moon and by spacecraft that were launched from the Moon.

将通过设在月球的天文望远镜和由月球发射的宇宙飞船，对数以千计的近地目标星体（小行星和彗星）进行分析研究。

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It provides information on NASA's missions to study comets, asteroids and near-Earth objects, and also provides the basic facts and the very latest in science and research on these objects.

它提供了NASA研究彗星，小行星和近地天体的任务的信息，也提供了有关这些天体的基本事实和最近的科学研究成果。

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"It's not just for going to the moon or near Earth objects.

VOA: special.2009.12.30

The NASA Near Earth Objects (NEO) Program at the agency's headquarters in Washington, manages and funds the search, study, and monitoring of NEOs, or asteroids and comets, whose orbits periodically bring them close to the Earth.

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Near-Earth objects are comets or asteroids in orbits that allow them to enter Earth's neighborhood.

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Which is why, after a comet struck Jupiter in 1994, NASA decided to launch a research programme into Near-Earth Objects.

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