Space junk might be a piece of metal that broke off from an orbiting satellite.

太空垃圾可能是从轨道卫星上脱落下来的一块金属。

Space junk can be anything from dead satellites, to lost pieces of equipment, to small pieces of paint.

太空垃圾的范围很广，可以是废弃卫星、丢失的设备、小块的油漆。

Did they have an exhibit on space junk?

他们有关于太空垃圾的展览吗？

US regulators have issued their first-ever fine for space junk.

美国监管机构开出首张太空垃圾罚单。

Gray thinks space junk should be directed toward the moon whenever possible.

格雷认为太空垃圾应该尽可能在控制之内撞向月球。

It's an attempt to demonstrate a way to potentially clean up space junk.

这次尝试正在努力找到一种能够清理太空垃圾的方法。

There's a reason the planet rejects some of the space junk heading its way.

前提是行星拒绝一些太空垃圾挡住自己的道。

The not-so-good news is that there's a lot more space junk where that came from.

不太好的消息是，像天宫一号那样的太空垃圾还有很多。

Together, ESA and UNOOSA have launched a campaign to bring attention to the problem of space junk.

ESA和UNOOSA共同发起了一个活动，目的是引起人们对太空垃圾的重视。

The robots maneuvering has brought renewed attention to the growing concern about space junk orbiting our planet.

机器人操控重新引起了人们对环绕地球的太空垃圾的关注。

If it works though, the demo flight could set the stage for a new space junk clean up.

如果成功了，这次演示飞行将为太空垃圾清理提供新方法。

NASA estimates about 100 million pieces of space junk are hovering over our heads as we speak.

美国国家航空航天局估计，就在我们说话的时候，大约有1亿片太空垃圾在我们头顶盘旋。

There are thousands of pieces of space junk floating above our heads right now up in outer space.

现在有成千上万的太空垃圾漂浮在我们的头顶上。

NASA estimates that there are 500,000 pieces of space junk that size traveling as fast as 17,500 miles per hour.

国家航空航天局预计在太空大约有50万块这样大小的太空垃圾在以最快17500英里每小时的速度运动。

Astronomers have said space agencies like NASA need to do more to monitor pieces of deep space junk like this.

天文学家表示，像NASA这样的航天局需要进一步加强对类似外太空垃圾的监控。

And they said the satellite's smartphone was still working, so at least that's not a total piece of space junk.

他们说卫星上的通话设备还能使用，至少它不是彻头彻尾的太空垃圾。

Government and private sector organizations are working to track space junk and potential solutions are popping up on college campuses too.

政府和私人组织正在设法追踪太空垃圾，大学中也产生了各种清理方案。

NASA said it could have been caused by a small piece of space junk or a small meteorite colliding with the spacecraft.

NASA表示这个洞可能是由一小块太空垃圾或是一小块撞击太空飞船的陨石造成。

McDowell said the remains of the SpaceX rocket is just one example of the growing problem and possible dangers of space junk.

麦克道尔说，SpaceX火箭的残骸证明了太空垃圾问题日益严重，及其存在的危险。

Space junk has been a concern since the time of the Space Race between the United States and the former Soviet Union during the 1950s and 60s.

太空垃圾一直是人类的一项忧虑，自从美国和前苏联在上世纪五六十年代开始太空竞赛起就成了一项忧虑。