文章列表

• 1.What Is the Colour of Sunlight?
• Why does the sun look red at sun-rise and sunset？ When the sun rises and sets， it goes through a very thick layer of air and a lot of sun-light is a...
• 2.How Big Is the Sun? How Far Is It from Us ?
• Of all the stars that can give out light and heat， the sun is neither the biggest， nor the smallest. It appears very big because it is the closest s...
• 3.Eclipses
• A lot of animals are afraid during an eclipse1 of the sun. Birds stop singing. Sometimes people too are afraid. Astronomers2 know the dates of eclipse...
• 4.The Hubble 哈勃太空望远镜
• When most people think of space， what come to mind are names like John Glenn and Neil Armstrong. When scientists think about space， the name that co...
• 5.The woman in the moon
• There is a Woman in the Moon but many people have never seen her. She is much more obvious than the Man in the Moon. Seen in profile, the appearance o...
• 6.太阳隐藏着的小兄弟威胁着地球（三）
• [11] Muller's breakthrough was to find a way to date how long ago any particle was meltedmeaning he could build up a picture of whether the moon gets ...
• 7.太阳隐藏着的小兄弟威胁着地球（二）
• [6] One group, led by John Matese, professor of physics at the University of Louisiana at Lafayette, confirms the notion that it is most likely to be ...
• 8.太阳隐藏着的小兄弟威胁着地球（一）
• [1] When the end of the world comes, we'll know what to blame. Scientists have found compelling evidence that the Sun has a baby brother, a dark star ...
• 9.Scientists slice and dice comet dust
• ST. LOUIS, Missouri (AP) Scientists said Monday they have begun slicing and dicing the first of hundreds of microscopic specks of comet dust, virtuall...
• 10.Scientists: Pluto might have rings
• (SPACE.com) The two moons discovered around Pluto last year were likely formed from the same giant impact that created the planet's much larger satell...