The first discussions about science ethics have begun in 19th century. In the second half of the 20th century, global economical, technological etc. competition has increased the interest in science. As a result of this, science and scientific environment disconnected from their own subjective and objective conditions, have begun to be driven in a structure supported and controlled by economical end commercial foundations. These conditions while having a directive role in the scientific findings and results, have also increased the unethical conducts. In a similar way, the increased competition in the academic community and the necessity of doing more and more publications have triggered unethical attitudes. The widespread use of internet, while maintaining the possibility of accessing the sources of knowledge and information on the web on an international level, has also brought many ethical problems with itself. Many information whose contents had not passed editorial control of scientific communities and whose truth has been suspicious have begun to be shared over the internet medium. Internet, at the same time, has maintained the possibility of obtaining a lot of individual and institutional information by using polls etc. and several software programs. This situation has brought the problem of maintaining the security of individual and institutional information. Existing ethical norms and even legal arrangements have been inadequate for the solution of this problem. In the first part of the essay, the concepts of ethics and science ethics have been investigated through the historical process, and ethical misconducts in scientific research and in scientific publishing areas have been discussed. In the second part of the essay, the effect of internet on the scientific research and on the science ethics have been examined. In the last part, the studies about science ethics realized in Turkey have been mentioned.