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Horizon - Life On Mars 火星生命 - 2

I think it is exciting. Because it would imply that if life arose independently on Mars. The implication is that life is pervasive throughout the universe. This is why Mars has so obsessed scientists.

发表于:2018-12-07 / 阅读(54) / 评论(0)

火星生命

Horizon - Life On Mars 火星生命 - 5

William Boynton is professor of planetary sciences at the University of Arizona. And he's dedicated his life to looking for water on Mars. The link between life and water is very strong. Even here in

发表于:2018-12-07 / 阅读(76) / 评论(0)

火星生命

Horizon - Life On Mars 火星生命 - 12

But there was something even better. Odyssey may not just have found ice. There may also be liquid water, and that means, there could be living creatures there too. Right now, there might be liquid wa

发表于:2019-01-02 / 阅读(75) / 评论(0)

火星生命

Horizon - Life On Mars 火星生命 - 9

The ground here is permafrost, a mixture of soil and ice frozen together. A group of Russian scientists have teamed up with NASA to drill down into it in search of microorganisms. It's work that's bee

发表于:2019-01-02 / 阅读(63) / 评论(0)

火星生命

Horizon - Life On Mars 火星生命 - 11

One of these wavelengths corresponds to hydrogen, another wavelength would be iron. Another wavelength would be oxygen. And so you go to the part of the spectrum you are interested in and you see you'

发表于:2019-01-02 / 阅读(53) / 评论(0)

火星生命

VOA慢速英语2011--Mobile Devices' Location Tracking Raises

Technology Report - Mobile Devices' Location Tracking Raises Privacy Concerns This is the VOA Special English Technology Report. Lawmakers in the United States have expanded an investigation into the use of location-tracking systems on mobile devices

发表于:2019-01-12 / 阅读(66) / 评论(0)

2011年VOA慢速英语(五)月

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abafas

Aghat

akc

allelopathic substance

anisotropicsubstance

announcement of credit regidtration