万花筒 2009-05-20&05-21 哈勃望远镜修复工作惊险进

The third space walk in as many days of the Hubble, this time Atlantis crew astronauts have been fixing an instrument which is called the Cosmic Origins Spectrograph, a device that will help detect faint light far away, possibly a tool to help to learn more about how planets, stars, and galaxies¹ were formed. An old burnt-out camera was also fixed². And official say it was the most challenging task yet for John Crunsfeld and Andrew Feustel. Not least, because Atlantis is at constant risk of collision with space junk due to its high orbit." But so far success." says David Leckrone from NASA.

"We have our two new scientific instruments in. We have demonstrated the very first internal repair of the scientific instrument in space today and through the aliveness test. I mean that this was an instrument that was dead and it has now been demonstrated to be 'alive', at least electrically."

So it’s three space walks down two to go. One is due today, while the final one is set for Monday. NASA hopes to keep Hubble working for another five to ten years but no one will be coming back to the telescope so work is being crammed³ into an already tight schedule.

1 galaxies   

星系( galaxy的名词复数 )； 银河系； 一群（杰出或著名的人物）

参考例句：

• Quasars are the highly energetic cores of distant galaxies. 类星体是遥远星系的极为活跃的核心体。
• We still don't know how many galaxies there are in the universe. 我们还不知道宇宙中有多少个星系。

2 fixed   

adj.固定的，不变的，准备好的；(计算机)固定的

参考例句：

• Have you two fixed on a date for the wedding yet?你们俩选定婚期了吗？
• Once the aim is fixed,we should not change it arbitrarily.目标一旦确定，我们就不应该随意改变。

3 crammed   

adj.塞满的，挤满的；大口地吃；快速贪婪地吃v.把…塞满；填入；临时抱佛脚( cram的过去式)

参考例句：

• He crammed eight people into his car. 他往他的车里硬塞进八个人。
• All the shelves were crammed with books. 所有的架子上都堆满了书。