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-Lawrence, what a discovery! And I believe I was you who made it. -Yes, I was me and my team. We took a lot of groundbased observing and a lot of modeling, and also it was quite the team that actually made the discovery. I got to lead it, because I'v
Hi, laurence, whats a discovery that I believe it was u who made it. Yes, I and my team, we took a lot of ground basic oberserving and a lot of modeling, and also it was quite the team that actually made the discovery. I got to lead it coz I have bee
This is Scientific Americans' 60-Second Science, I'm Chelsea Wald. Got a minute? Remember the good old days when we understood our solar system? Then we found out Pluto wasn't a planet. And now a new study puts comets in question. The data come from
This is Scientific Americans 60-Second Science. Im Adam Hinterthuer. Got a minute? If there's a line in Vegas on the odds of life on another planet, now might be a good time to place a wager. A study in the journal Science examined 166 Sun-sized star
Have you ever had a dream, Neo, that you were so sure was real? What if you were unable to wake from that dream? How would you know the difference between the dream world and the real world? What is happening to me? The answer is out there, Neo. It's
Research is a very important thing. Without research, wed have no new products. Our food would be more dangerous to eat. And wed never go to the moon. Id like to see my government spend a lot more money on research. Especially on research into diseas
The future of our planet is at stake. If we do not act now, We may never be able to save the earth. There is good news too: we can make a difference. We may think that what we do in our everyday life has no effect on big problems, such as environment
In 1972, the United Nations held a meeting in Stockholm, Sweden to share ideas about ways to take better care of the earth. At the Stockholm summit, representatives from more than one hundred countries discussed some of the most important problems fa
The island of Ireland lies west of Britain and is the westernmost island of the British Isles. Although a small country, it has an amazing history of over 5,000 years. Few places on the planet are as packed with history as Ireland. Everywhere you loo
新课标小学英语第八册(一年级起点外研版)MODULE 7 Unit 1 This one is the biggest planet. Unit 2 Twinkle, Twinkle Little Star
There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th
Seven years ago, we made the single biggest investment in clean energy in our history. 七年前,我们在清洁能源领域进行了美国历史上最大规模的一次投资。 Here are the results. In fields from Iowa to Texas, wind power is now
But we can do so much more. 但是,我们能做的还不止这些。 Last year, Vice President Biden said that with a new moonshot, America can cure cancer. 去年,副总统拜登曾说,要把治愈癌症作为一项新的登月计划去实现。
Aliens 第22单元 外星人 Wendy and Allan were playing in their backyard when they saw a strange light in the sky coming toward them. The light got closer and closer. It was coming from a strange ship. 温蒂和艾伦在自家后院玩耍时,看到
Well, hearing that Odyssey had found subsurface water on Mars was enormously exciting for somebody who is involved in planning to send humans to Mars. Water has a number of important uses for us. At t
American Businesses Look to Space The United States government is trying to help private companies in their efforts to use space for business purposes. Last week, President Donald Trump signed a space policy directive aimed at easing rules on commerc
Newly Discovered Solar System Matches Our Own The American space agency NASA and the technology company Google have identified an eighth planet in a faraway solar system. 美国宇航局和谷歌科技公司已经发现了一个遥远的类太阳系中
Two scientists work together to test a geo-radar that was built to make a map of the planet Mars. They pull the flat box across rocky, sandy ground. They are wearing spacesuits, just like astronauts do in space. The bright white on their protective e
NASA's Juno Spacecraft Shows the Makeup of Jupiter Scientists are finding that the inside of Jupiter is just as interesting as the part of the planets atmosphere that we can see. At the center of the planet is a liquid mixture of the elements hydroge
We are living on a planet with a lot of activities, with reference to our living environment,done by faith and guess alone. 我们对于这个地球上所发生的许多现象,都只是通过信念或猜测来认知。 Our lives depend upon these cre