1.   Scientists can learn much about the nature of an object by studying the way it emits and absorbs light and other radiation.

2.   Scientists are learning more about how the human brain works.

3.   As scientists learn to diagnose diseases by analyzing genes, the public will have to decide what to do with the knowledge.

4.   As scientists learn more about the long-term effects, treatment possibilities expand.

5.   As scientists learn more about the origins of the universe, the current theory of evolution will undoubtedly change.

6.   At the Centers for Disease Control in Atlanta, scientists have learned a good deal about anthrax just from studying the blood of Blanco and the others.

7.   Australian and American scientists argue that DNA research on feces and skin enables scientists to learn about whales without killing them.

8.   Because of data from the Galileo spacecraft, scientists are learning more about Jupiter.

9.   Because of the mission, scientists have already learned that Eros is a solid body of uniform composition made of a material that is probably older than the Earth.

10.   But as scientists learn to grow the substance in lab dishes, those small nicks and tears become less daunting.