美国科学60秒 SSS 2013-01-08

This is Scientific American 60 second Science, I am Karen Hopkin, this will just take a minute. There are in fact 100 billion galaxies, each of which contains something like a 100 billion stars. Well, Carl Sagan would have loved to get the latest est

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VOICE ONE: I'm Barbara Klein. VOICE TWO: And I'm Bob Doughty with EXPLORATIONS in VOA Special English. This week, we tell about a project to identify images of one million galaxies that have been captured by the Sloan Digital Sky Survey. We also tell

当心您的爱车成为细菌的温床

Do you know so many of you will climb into your cars today perhaps to shuffle your children to soccer, to football, make their (refer to the cars) run to the grocery store. But do you also know what's

Possible Earth-Like Planet Next Door?

Possible Earth-Like Planet Next Door? Scientists say they discovered an Earth-like planet orbiting the star closest to our planet other than the Sun. It is the closest planet ever found outside our solar system that could support life as we know it.

科学美国人60秒 SSS Winking Star Six Centuries Ago Explained

Winking Star Six Centuries Ago Explained 揭秘600年前那颗一闪即逝的恒星 On March 11, 1437, Korean royal astronomers noticed something out of the ordinary in the night sky. There was a brand new star they'd never seen before, between two o

SSS 2010-01-15

For astronomers who study the large-scale structure of the universe, dwarf galaxies have proven quite vexing. Because the leading model of cosmology has been unable to account for their relative lack of substance. Now scientists writing in the journa

60秒科学:Why Dwarf Galaxies Lack Star Power

Why Dwarf Galaxies Lack Star Power In a study in the journal Nature, researchers show that the relative lack of star density in dwarf galaxies need not conflict with standard cosmological models if you include the blast effects of supernovae. Karen H

VOA慢速英语20060826a

IN THE NEWS - Pluto and Dark Matter Both Star in a Busy Week for AstronomersBy Brianna Blake Broadcast: Saturday, August 26, 2006 This is IN THE NEWS in VOA Special English. Pluto compared to other so

CNN 2010-10-03

Declassify US government documents and witness testimony from former or retired US military personnel confirm beyong any doubt the reality of ongoing UFO incursions at nuclear weapon sites. When I say UFO, the witnesses have described this craft as d

SSS 2009-01-14

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid

SSS 2010-01-12

If youve ever had a garden or grown flowers in a window box, youve probably heard that you shouldnt water your plants at high noon because their leaves might scorch. Now a study in a journal called New Phytologist confirms that water droplets can foc

2006年VOA标准英语-Scientists Find Milky Way Eats an Intrudin

By David McAlary Washington 10 January 2006 Before you continue thinking about our Milky Way galaxy as a peaceful, spiral disk of stars slowly rotating through the heavens, consider this: It is hungri

2006年VOA标准英语-Pluto Demoted, No Longer a Planet

By Patricia Nunan in Kantale, Sri Lanka 24 August 2006 As many as 170,000 people in northern and eastern Sri Lanka have been displaced in recent weeks by fighting between the Tamil Tiger rebels and government forces. VOA's Patricia Nunan recently me

TED演讲 :飞向海洋(5)

You see the larger wing area here. 你们可以看到这儿有面积更大的翅膀。 Also, clearly, it was such a powerful thing,we wanted to try and bring other people but we couldn't figure out how to do it. 而且，这还是件很有影响力的事

英语听力：自然百科 穿越银河系的旅行 Through Milky Way—19

One of the puzzles about our galaxy is that we know that it's had stars forming continuously for about the last ten billion years. But at the rate/ it's eating up its gas now, it's forming new stars, it should burn out that gas soon, should run out o

2015-04-17 BBC:星光七纪元-26

Thats why what we physicists called pressure. This pressure is created as the particles jostle for position. Its a principle of Quantum Mechanics and when it was applying to stars, the lives of dead white dwarfs suddenly made sense. What stopped them

Dark Matter

> 43 存在于恒星与行星间的黑色物质 DATE=5-2-01 TITLE=SCIENCE REPORT - Dark Matter BYLINE=Jill Moss (Start at 58

美国发现3个新地球:全都在水瓶座

For centuries it has been one of the most vexing mysteries for mankind: are we, the seven billion inhabitants of this wondrous [en]blue planet really alone, or is there life somewhere out there in the universe? 数百年来，人类一直为一个最大

TED演讲:月亮的错觉(2)

For one thing, if this was just the Ebbinghaus effect, 首先，如果真是艾宾浩斯效应， then we would expect the moon illusion to disappear for pilots flying high above the clouds 那么我们应该预期月球错觉对于空中的飞行员来

科学美国人60秒 SSS X射线可能照射到一些可居住外行星区域

Some Habitable Zone Exoplanets May Get X-Rayed Out X射线可能照射到一些可居住外行星区域 As astronomers hunt for habitable, Earth-like worlds, one popular place to look is around M stars, a type of red dwarf. Couple reasons for that: 当