Why is space junk considered a problem?

为什么太空垃圾被认为是一个问题？

Many scientists are also suggesting different ways to clean up space junk.

许多科学家也提出了清理太空垃圾的不同方法。

In England, scientists are testing metal net that can be fired into space junk.

在英国，科学家们正在测试可以被发射到太空垃圾中的金属网。

According to BBC News, there are more than 22,000 pieces of space junk floating around the earth.

据 BBC 新闻报道，有超过22000块太空垃圾漂浮在地球周围。

The Germans are building robots that can collect pieces of space junk and bring them back to Earth to be safely destroyed.

德国人正在制造能够收集太空垃圾碎片并将其带回地球安全销毁的机器人。

For example, when a satellite hit an old Russian rocket in 2009, it broke into more than 2,000 pieces, increasing the amount of space junk.

例如，2009年，一颗卫星撞上了一枚俄罗斯旧火箭，它碎成了2000多块碎片，增加了太空垃圾的数量。

Space junk is dangerous.

太空垃圾极其危险。

Have you ever seen some space junk with your own eyes?

你在空间站亲眼眼看到过太空垃圾吗？

A four-inch piece of space junk can demolish a shuttle.

一片四英尺的太空垃圾可以摧毁一架航天飞机。

Pf : Probability that a piece of space junk will survive reentry.

Pf：指一块太空垃圾坠落到地球表面的概率。

Never mind that the moon gets hammered with space junk all the time.

月球总是被太空垃圾敲敲锤锤的已经没关系了。

If some break or collide with space junk, others can take their place.

如果其中有些损坏，或是撞上了太空垃圾，还有其他的可以代替。

The US will also fund research into cleaning up the space junk that's already there.

美国也会资助研究清除已有的太空垃圾。

Nasa engineer Creon Levit said it was imperative that something was done about space junk.

美国宇航局工程师克里昂？莱维特表示，处理太空垃圾迫在眉睫。

Nasa is considering using lasers to deflect space junk around Earth and stop it colliding with satellites.

美国宇航局NASA目前正在打算利用激光给环绕在地球周围的太空垃圾来一次大扫除，目的是为了防止他们与卫星发生碰撞。

Earth got a close shave Monday morning from an asteroid so small it was originally mistaken for space junk.

周一早晨一颗小行星和地球擦肩而过，曾因为其太小而误认为是太空垃圾。

The ability to rendezvous in orbit could be used to help clear out space junk or inspect or fix satellites.

轨道相会技术可以被用作清理太空垃圾或是卫星修理。

The satellite was deactivated in 2005 as it ran out of fuel and was left orbiting Earth like a big piece of space junk.

这颗卫星于2005年由于燃油耗尽报废，并像一大块宇宙垃圾一样被扔在了飞行轨道上。

This month, NASA's Orbital Debris Program Office released data naming the top ten incidents contributing to the space junk problem.

本月美国太空署轨道碎片项目办公室公布了一份数据，显示了造成太空垃圾的十大事件。

NASA says another piece of space junk is drifting toward the International space Station just as the space shuttle is headed that way.

美国宇航局称除了航天飞机正向国际空间站飞去之外，还有一块空间垃圾也正向空间站飘来。

A new report by the National Research Council warns that the problem of space junk in earth's orbit is on the verge of getting out of control.

一份由国家研究委员会作出的新报告警告称，地球轨道上太空垃圾的问题濒临失控的边缘。

But only one woman has ever been hit by space junk: Lottie Williams from Oklahoma was smacked in the shoulder by a charred piece of space-rocket.

还好，到现在为止，只有一名妇女曾被太空垃圾击中：俄克拉何马的洛蒂·威廉姆斯的肩膀被一块烧焦的太空火箭碎片擦着了。