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小行星个体变小的出现率在提高,因此,地球受小行星比大行星撞击的可能性更大.问题的重要性不在于此,因为无论如何,靠近地球环绕飞行的小行星极细极为罕见.而重要的是,这些小行星在何处?或者说,我们应当了解这些小行星.遗憾的是,虽然我们对其有了较好的了解,但实际上尚没有完全彻底了解.直到大约两年前,个体达100m的小行星尚无法检测出来,因为它们的光太微弱以至在照相底
The incidence of smaller asteroids is on the rise, so planet Earth is more likely to collide with a planet than an asteroid, and the problem is not so significant because, in any case, the asteroids that fly around the earth are very, very rare The important thing is, where are these asteroids, or we should know about these asteroids.Unfortunately, although we have a good understanding of it, we have not actually understood it completely until about two Years ago, individuals asteroid up to 100m were still undetectable because their light was too weak to reach the bottom