In science, theories are falsifiable and results must be reproducible. In a pseudoscience, scientific theories are not falsifiable and results cannot be reproduced. Additionally, in a science, failures are searched for and closely studied, and theories are discarded or revised if refuting evidence is found. In a pseudoscience, failures are ignored or excused, and refuting information is disregarded or ignored. Lastly, science attempts to develop solutions to problems, whereas few attempts are made in pseudoscience.
