The moving Earth.
Corel Corporation.
The Moving Earth
Even though we cannot sense it, the Earth is constantly in motion. In
fact, the Earth isn't just moving, it's moving really fast! The fact
that we do not feel as if we are moving led people to believe that the
Earth is the stationary center of the universe for centuries.
Eventually, astronomers discovered that the only way to explain
all of the motions they observed in the sky was if the Earth
were really moving. From their observations of the sky, they realized
that there are two components to the Earth's motion; the Earth is orbitting the Sun, and the Earth is spinning like a top.
You might also be interested in:
![](/store/images/T/book_sm.jpg)
How did life evolve on Earth? The answer to this question can help us understand our past and prepare for our future. Although evolution provides credible and reliable answers, polls show that many people turn away from science, seeking other explanations with which they are more comfortable.
...more![](/earth/cdimages/Tropical_Storm_s2.gif)
Like all planets in our solar system, the Earth is in an elliptical orbit around our Sun. In Earth's case, its orbit is nearly circular, so that the difference between Earth's farthest point from the Sun
...more![](/the_universe/uts/log.jpg)
The Earth is rotating around an axis (called its rotational axis). Some objects rotate about a horizontal axis, like a rolling log. Some objects, such as a skater, rotate about a vertical axis. The Earth's
...more