Chemists in exobiology have studied meteorites which have fallen to the earth. In studying these samples, chemists are looking for clues to what the atmospheres and environements on other planets may have been. They also are looking for amino acids, especially homochiral amino acids, which would be a very good indicator of life elsewhere in the universe. Aside from exobiology, chemists are involved in most areas of the economy. Whenever a product is manufactured, chemists are involved to create the products composition, and to see if it is safe for the public.
Physicist Physicists are people who work with the mechanics of nature.
There are many types of physicists, such as astrophysicists and electrophysicists. An example of a job an astrophysicist might perform is the designing and testing of the space shuttle or satellites. An electrophysicist might develop a radar or work in electronics. In exobiology, physicists have been busy determing the energy released when a bolide collides with the earth. Physicists often spend time designing things for practical use, and usually spend their time in the laboratory testing their ideas.