By Mary Firestone
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It can find laser beacons from civilizations that might exist many light years away from Earth. 42 SETI Scientist Past optical SETI searches have had problems with false alarms, because of Earth-based light that looked like pulses from outer space. ” Stuart Kingsley is a well-known optical SETI scientist who has been conducting his own experiments for many years. Recently, his research has been embraced by others in the SETI field. He has convinced some scientists that optical SETI is an effective tool because powerful lenses can receive pulsed laser beacons.
SETI scientists use their mathematics and physics knowledge to give them a deeper understanding of astronomy and the workings of the universe. SETI scientists can also receive training through student fellowships, internships, and by volunteering at observatories and planetariums. Math, science studies, and internships are not the only things needed for a career in SETI. Successful SETI scientists must be able to communicate effectively both in speech and in writing. SETI research is eventually described mostly in words, and SETI scientists often present the results of their studies to the science community by giving talks on a variety of topics.
These signals strike the reflecting surface of the dish, which is made of metal. These reflected waves are concentrated and focused through receivers, which use “wave guides” that are specially tuned to the radio or microwave frequencies. Signal processors in the telescope are extremely sensitive to the distances and amplitude of the radio waves, which reveal plains, mountains, valleys, and the quality of the atmosphere of distant planets. Years ago, scientists were able to learn that the moon’s surface was covered in sand, long before astronauts ever walked on it, because radio waves that the moon gave off revealed its grain-like surface.