英语翻译
还有The sky is history是什么意思
It takes a long time for light from the stars to come to earth.From the nearest star to earth,it takes about 4(1/2) years.From other stars,light can take millions of years to come to us!In the sky,we can see how the stars WERE many years ago,not how they are now.
The earth from space
From space,you can see that 71% of the earth is water.There is life on earth because it is not too hot or too cold and there is air.Is there life on other planets?Astronomers don't think so but it is possible that there are more planets in the universe.Perhaps there is life there.
还有一句：the moon makes the tides -the changes in the level of the sea