天宮一號(hào)將上演“失控式”墜落

China’s space ambitions have taken a further step down a path blazed by the US decades ago, after revelations that its first space laboratory is likely to fall to earth next year.

中國(guó)的航天雄心沿著美國(guó)幾十年前就趟出的道路又向前邁進(jìn)了一步。有消息稱，中國(guó)首個(gè)太空實(shí)驗(yàn)室很可能將于明年墜回地球。

In a press conference at Jiuquan, the desert launch site for China’s space rockets, Wu Ping, a director at China’s space engineering office, said the Tiangong-1 would most likely burn up on descent, confirming suspicions that the lab was no longer in a controlled orbit. The eight-tonne lab was launched in 2011 and decommissioned earlier this year.

在位于沙漠地帶的酒泉衛(wèi)星發(fā)射中心舉行的新聞發(fā)布會(huì)上，中國(guó)載人航天工程辦公室副主任武平表示，天宮一號(hào)(Tiangong-1)最有可能的結(jié)果是在隕落過(guò)程中燒蝕銷毀。這一表態(tài)證實(shí)了關(guān)于該實(shí)驗(yàn)室不再處于受控軌道的猜測(cè)。這座重達(dá)8噸的實(shí)驗(yàn)室是于2011年發(fā)射的，并在今年早些時(shí)候退役。

The possibility of an uncontrolled descent is reminiscent of the 1979 re-entry of Skylab, Nasa’s first space laboratory, that generated a storm of media attention in the weeks before it crashed to earth.

可能發(fā)生的失控墜落，讓人回想起了1979年美國(guó)國(guó)家航空航天局(NASA)首座太空實(shí)驗(yàn)室“天空實(shí)驗(yàn)室”(Skylab)重入大氣層那件事。在墜回地球之前的幾周里，那次重入引發(fā)了媒體的瘋狂關(guān)注。

Mr Wu did not say when the Tiangong-1 was likely to re-enter the atmosphere.

武平并未言明天宮一號(hào)可能于何時(shí)重入大氣層。

China is rapidly catching up with the US, EU and Russia in space, building its own networks of telecommunications satellites and mimicking earlier ambitions for a mission to the moon. It landed a moon rover, the Jade Rabbit, on the moon in 2013 but a defect in the rover’s solar panels means it is effectively defunct.

中國(guó)正在太空領(lǐng)域飛速地追趕美國(guó)、歐盟(EU)和俄羅斯，它建立了自己的通信衛(wèi)星網(wǎng)絡(luò)，并照貓畫虎地制定了自己的登月抱負(fù)。2013年，中國(guó)將玉兔號(hào)(Jade Rabbit)月球車送上月球。然而，玉兔號(hào)的太陽(yáng)能電池板出了故障，導(dǎo)致它事實(shí)上無(wú)法繼續(xù)工作。

A satellite launched earlier this summer has the distinction of being the first where China is scientifically in the lead, as it will test the principle of quantum entanglement over long distances. If successful, the technology will, in theory, allow any snooping on communications to be detected, but a Chinese cryptographer has argued that the messages are still vulnerable to being destroyed, limiting its military value.

中國(guó)今年夏天早些時(shí)候發(fā)射的一顆衛(wèi)星有一個(gè)獨(dú)特之處，它是首顆涉及中國(guó)在科學(xué)上擁有領(lǐng)先地位的領(lǐng)域的衛(wèi)星。這顆衛(wèi)星將檢驗(yàn)長(zhǎng)距離的量子糾纏原理。這種技術(shù)一旦成功，理論上將能夠察覺(jué)任何對(duì)通信的監(jiān)聽。不過(guò)，中國(guó)一位密碼學(xué)家認(rèn)為，用這種技術(shù)傳遞的信息依然很容易遭到破壞，從而限制了它的軍事價(jià)值。

The Tiangong-1 served as a base for experiments for more than four years, roughly twice as long as originally anticipated. It will be replaced with the Tiangong-2, which launched last week.

天宮一號(hào)作為實(shí)驗(yàn)基地已服役了四年多，差不多是最初預(yù)期壽命的兩倍。它將由日前發(fā)射的天宮二號(hào)(Tiangong-2)代替。

The large expanses of ocean and desert on earth means that the portions of the lab that do not burn up on entering the atmosphere are unlikely to hit populated areas.

地球上海洋和荒漠面積廣大，意味著天宮一號(hào)重入大氣層后未燒蝕銷毀的部分不太可能擊中有人居住的地區(qū)。

In 1979, large segments of Skylab crashed to earth in a remote part of Australia, prompting the shire of Esperance to fine Nasa A$400 for littering. The fine was only paid in 2009 when an California radio host raised the money from listeners.

1979年，天空實(shí)驗(yàn)室的多塊大型殘骸墜落在澳大利亞一個(gè)偏遠(yuǎn)的地區(qū)，結(jié)果NASA被埃斯佩蘭斯郡(Esperance)罰了400澳元，罪名是亂丟雜物。這筆罰款到了2009年才被支付，當(dāng)時(shí)加利福尼亞州一電臺(tái)主持人從聽眾那里籌來(lái)了這筆錢。