Commercial Diver
Just about anywhere there is water, there is a need for commercial divers. Their work ranges from operating submersibles to helping map the ocean floor. They may perform underwater surveys or carry out underwater rescue and salvage operations.
Educational requirements High-school diploma, diving-school certification or naval training
Archaeologist
Archaeologists excavate, preserve, study, and classify objects and structures from past cultures. In order to interpret what they see at a particular site, archaeologists must be able to identify different types of soil and notice the smallest of changes in soil characteristics.
Educational requirements Master's degree in anthropology or archeology
Astronomer
Astronomers use the laws of physics and mathematics to study the universe. They may specialize to investigate the moon, sun, planets, stars, or galaxies, such as the Andromeda Galaxy shown in the photo at the left. They also may use what they know about astronomy to help develop satellites and spacecraft.
Educational requirements Doctoral degree in physics, astrophysics, or space physics