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科学美国人视频:2016行星大事记——水星、金星与火星
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科学美国人视频:2016行星大事记——水星、金星与火星

The Year in Planetary Science

2016行星大事记——水星、金星与火星

Hey folks, it’s Lee Billings at Scientific American joined by my esteemed colleague...

大家好,我是《科学美国人》的李·比林斯,这位是我的同事尊敬的……

...Mike Lemonick

迈克·勒莫尼克

And together we’re going to give you a very quick rundown of what’s up in the solar system in 2016.

今天我们将一起带您快速概览2016年太阳系发生的事。

Yeah, so let’s start with Mercury, closest planet to the sun. Astronomers have discovered a colossal canyon, twice as deep as the Grand Canyon. Mercury is gradually shrinking as it cools. And as it shrinks it crumples up, like a grape shrinks into a raisin, and making those little crevices—except this is a really big crevice.

我们首先来看离太阳最近的行星——水星。天文学家在水星上发现了一个巨大的峡谷,其深度是科罗拉多大峡谷的两倍。由于气候变冷,水星正在逐渐萎缩。水星萎缩时会起皱,就像葡萄收缩成了葡萄干,同时产生一些小凹缝——除了这一个非常大的裂缝。

Wild. Now, Venus isn’t shrinking, is it?

狂野!那么,金星没有萎缩吧,对吧?

Venus is not shrinking, but it is showing evidence that it might once have had oceans where life could have existed before the temperature went up to 900 degrees. And life could still be persisting in the clouds, and we could actually go look for it.

金星并没有收缩,但金星上发现的证据表明,在温度上升到900度之前该行星上曾经有过海洋,而海洋中可能有过生命存在。而且在金星云层中可能还有生命仍然存在,我们甚至可以去那里寻找生命。

Okay. We are going to skip over Earth, I guess; no one cares about Earth in the context of space. But lead us to Mars!

嗯,我想我们将跳过地球。谈论太空时,应该没有人想说地球吧。不过,请带我们去火星吧!

The Mars Reconnaissance Observer has discovered an ice sheet 560 feet thick and has as much water as Lake Superior. So if you ever get to Mars to live, you’ll have a place to drink.

火星侦察观测器发现了一个560英尺厚的冰层,它的含水量和苏必利尔湖一样多。因此,假如你要去火星生活的话,那里就是你的水源地。

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