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Curiosity isn't NASA's only rover currently on the red planet.
“好奇號”并非美國宇航局目前在這顆紅色星球上的唯一探測器。
According to Digital Trends, the Opportunity rover has also been on Mars since 2004.
據(jù)“Digital Trends”報道，自2004年以來，“機遇號”也一直在火星。
But last year, the rover dropped out of communications when it got stuck in an enormous dust storm, and it hasn't been heard from since.
但在去年遭遇一場巨大的沙塵暴后，探測器失去了通訊聯(lián)系，此后再無音信。
Now NASA scientists are trying a last ditch attempt to contact the rover.
如今，美國宇航局的科學(xué)家們正試圖做最后的努力來聯(lián)系探測器。
They've outline three unlikely but possible scenarios to explain the rover's silence.
他們概述了三個不太可能但可能的場景來解釋探測器的失聯(lián)。
One is that the rover's primary X-band radio has failed; the second is that both the primary and secondary X-band radios have failed,
一是探測器的主x波段無線電失靈，二是主次x波段無線電全都失靈，
and the third is that the rover's internal clock has become offset.
三是探測器的內(nèi)時鐘發(fā)生位移。
NASA will try sending the new commands for several weeks,
未來幾周內(nèi)，美國宇航局將嘗試發(fā)送新的指令
but if Opportunity doesn't respond this time, then it's likely that the mission will have to be abandoned.
但是如果“機遇號”沒有回應(yīng)，那么該任務(wù)很可能將不得不放棄。
譯文屬可可英語原創(chuàng)，未經(jīng)允許，不得轉(zhuǎn)載。
