One example of a science fiction plot is "first contact." How would be treat aliens from another planet? How would these aliens treat us?

Scardox aliens do not mate. Science has never confirmed the existence of aliens as of 2014, though many people believe they are real.

Nobody is hiding knowledge of aliens or science. People enjoy circulating these bizarre rumors, but they do not make any sense and are not true.

Human contact with aliens in fiction is by necessity science fiction.

The genre is defined by speculative science or technology, the very existence of alien life is at this stage speculative science and the ability to travel between planets(either by us or the aliens) is currently speculative technology.

Scientists rarely think about aliens, they're too busy thinking about science and scientific things.