The probes reached interstellar space in 2012.

2012年，探测器抵达星际空间。

The first rocket to reach space was made in what country?

第一枚进入太空的火箭是在哪个国家制造的？

Neither of those countries was the first to reach space with a satellite.

这两个国家都不是第一个利用卫星进入太空的国家。

Not enough to reach outer space, which generally starts at 100 km above Earth's surface.

这还不足以到达外太空，一般从距离地球表面 100 千米的高空才算是外层空间。

Virgin Galactic's 21 meter Launcher One rocket reached space after release from beneath the wing of a Boeing 747.

维珍银河的21米发射火箭从波音747机翼下释放后进入太空。

But Musk recently said on Twitter: " There is a big difference between reaching space and reaching orbit" .

" 进入太空和进入轨道的区别还是很大的。"

Voyager 1 was launched on September 5, 1977. It was the first object to reach interstellar space in August, 2012.

旅行者1号探测器于1977年9月5日发射升空。2012年8月，旅行者1号探测器成为了第一个抵达星际空间的物体。

Previous claims have been made, but NASA says that after a 35-year journey Voyager 1 has indeed reached interstellar space.

虽然之前已经宣布过，但 NASA 说经过35年的旅行，旅行者1号的确到达了星际空间。

And it pushed Americans to work harder to reach outer space.

它促使美国人更加努力地工作以到达外层空间。

At nearly 3,000 pounds, it  was the heaviest satellite to reach space during this time.

它重近 3,000 磅，是当时到达太空的最重卫星。

While slower to reach space, the US sent Explorer  1 higher than the Sputniks had gone.

虽然到达太空的速度较慢，但​​美国发射的探索者一号比人造卫星飞得更高。

Secondly, the USSR would not be able  to eliminate it since missiles were not powerful enough to reach space.

其次，苏联无法消灭它，因为导弹的威力不足以到达太空。

Many people believed the nation that controlled the skies could win any war. And the Soviet Union had reached outer space first.

许多人相信能把控天空的国家将战无不胜，苏联最先到达外太空。

I'm not quite that ambitious but certainly before the space age reaches the ripe old age of 50 years or so, I believe the program will be underway.

我没有那么大的雄心壮志，但我相信在太空时代达到50年左右的成熟年龄之前，这个计划将会顺利进行。

Here are the facts: The Soviet Union launched the first satellite ever to reach space, Sputnik 1,   in 1957. The first human to go to space was also a Soviet citizen named Yuri Gagarin.

事实如下：苏联于 1957 年发射了第一颗到达太空的人造卫星 Sputnik 1。第一个进入太空的人也是苏联公民，名叫尤里·加加林 (Yuri Gagarin)。

The US was playing catch-up, but it successfully  launched its first satellite on January 31, 1958. The US may not have been the first to reach space,   but it was the first to transmit signals back from space.

美国正在追赶，但它于 1958 年 1 月 31 日成功发射了第一颗卫星。美国可能不是第一个进入太空的国家，但它是第一个从太空传回信号的国家。