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WhentwoUSastronautswentonaspacewalkearlierthismonth,theydroppedsomebolts.Scientistsst...
When two US astronauts went on a spacewalk earlier this month,they dropped some bolts.Scientists started to worry at once.Why?
In space,junk can kill others.Things move at very high speed in space.Ifthey hit one another,it can be danderous .A piece of dried paint from a satellite once made a hole in a spaceship window.
Luckily the bolts floated away into sapce.They didn't hit the spaceship.
So far,scientists have found over 10000 man-made things flying around in space probes.The rest is junk like the bolts.Where is the junk from?
Some is from rockets.In 1996,a rocket broke into about 300000 small pieces.Each piece was at least 4mm in size .
Astronauts also lose small things while walk in space.
In1965,duringthe first American space walk ,astronaut Esward White lost a glove.For a month,the glove stayed in space,travelling at a speed of 28000 kilometres per hour.It became the most dangerous piece of clothing in history before it flew away. 展开
In space,junk can kill others.Things move at very high speed in space.Ifthey hit one another,it can be danderous .A piece of dried paint from a satellite once made a hole in a spaceship window.
Luckily the bolts floated away into sapce.They didn't hit the spaceship.
So far,scientists have found over 10000 man-made things flying around in space probes.The rest is junk like the bolts.Where is the junk from?
Some is from rockets.In 1996,a rocket broke into about 300000 small pieces.Each piece was at least 4mm in size .
Astronauts also lose small things while walk in space.
In1965,duringthe first American space walk ,astronaut Esward White lost a glove.For a month,the glove stayed in space,travelling at a speed of 28000 kilometres per hour.It became the most dangerous piece of clothing in history before it flew away. 展开
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当两个美国宇航员进行了太空行走本月早些时候,他们放弃了一些螺栓。科学家们开始担心一次。为什么?
In space,junk can kill others.Things move at very high speed in space.Ifthey hit one another,it can be danderous .A piece of dried paint from a satellite once made a hole in a spaceship window.
在太空中,垃圾可以杀死别人。移动的东西在空间以非常高的速度。如果他们互相打,可风险。从卫星一块干涂料曾在一艘太空船窗孔。
Luckily the bolts floated away into sapce.They didn't hit the spaceship.
幸运的是,螺栓漂浮到空间。他们没有击中飞船。
So far,scientists have found over 10000 man-made things flying around in space probes.The rest is junk like the bolts.Where is the junk from?
到目前为止,科学家们已经发现了超过10000人为事物的空间探测器周围飞来飞去。剩下的垃圾像螺栓。哪里是垃圾?
Some is from rockets.In 1996,a rocket broke into about 300000 small pieces.Each piece was at least 4mm in size .
有些是从火箭。1996,火箭破成300000小块。每一块大小至少4mm。
Astronauts also lose small things while walk in space.
宇航员也失去了小事情而在太空行走。
In1965,duringthe first American space walk ,astronaut Esward White lost a glove.For a month,the glove stayed in space,travelling at a speed of 28000 kilometres per hour.It became the most dangerous piece of clothing in history before it flew away
在1965年,美国第一个太空行走,宇航员esward白丢了一只手套。一个月,手套呆在太空,在每小时28000公里的速度移动。它成为历史上最危险的一件衣服就飞走了
In1965,duringthe first American space walk ,astronaut Esward White lost a glove.For a month,the glove stayed in space,travelling at a speed of 28000 kilometres per hour.It became the most dangerous piece of clothing in history before it flew away
在1965年,美国第一个太空行走,宇航员esward白丢了一只手套。一个月,手套呆在太空,在每小时28000公里的速度移动。它成为历史上最危险的一件衣服就飞走了
In space,junk can kill others.Things move at very high speed in space.Ifthey hit one another,it can be danderous .A piece of dried paint from a satellite once made a hole in a spaceship window.
在太空中,垃圾可以杀死别人。移动的东西在空间以非常高的速度。如果他们互相打,可风险。从卫星一块干涂料曾在一艘太空船窗孔。
Luckily the bolts floated away into sapce.They didn't hit the spaceship.
幸运的是,螺栓漂浮到空间。他们没有击中飞船。
So far,scientists have found over 10000 man-made things flying around in space probes.The rest is junk like the bolts.Where is the junk from?
到目前为止,科学家们已经发现了超过10000人为事物的空间探测器周围飞来飞去。剩下的垃圾像螺栓。哪里是垃圾?
Some is from rockets.In 1996,a rocket broke into about 300000 small pieces.Each piece was at least 4mm in size .
有些是从火箭。1996,火箭破成300000小块。每一块大小至少4mm。
Astronauts also lose small things while walk in space.
宇航员也失去了小事情而在太空行走。
In1965,duringthe first American space walk ,astronaut Esward White lost a glove.For a month,the glove stayed in space,travelling at a speed of 28000 kilometres per hour.It became the most dangerous piece of clothing in history before it flew away
在1965年,美国第一个太空行走,宇航员esward白丢了一只手套。一个月,手套呆在太空,在每小时28000公里的速度移动。它成为历史上最危险的一件衣服就飞走了
In1965,duringthe first American space walk ,astronaut Esward White lost a glove.For a month,the glove stayed in space,travelling at a speed of 28000 kilometres per hour.It became the most dangerous piece of clothing in history before it flew away
在1965年,美国第一个太空行走,宇航员esward白丢了一只手套。一个月,手套呆在太空,在每小时28000公里的速度移动。它成为历史上最危险的一件衣服就飞走了
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