There is a whole channel with science fiction called SyFi. Seven of the most popular money making movies have been science fiction/science adventure. There are SF conventions all over the world on almost every weekend of the year.
The Internet Review of Science Fiction was created in 2004.
20th century
because it is
It depends on what you read. I generally think that it is very popular amongst boys but some girls as well. I do not enjoy reading it but that is not to say that others don't.
There are many types of fiction literature such as mystery and romance. Other popular fiction genres are suspense, women's, science fiction, western, horror and young adult.
Science Fiction is a fiction based on science.
Some popular innovations include sugar for tea, cotton underwear, tourism, science fiction, detective novels and uppward mobility. The MOST popular thing, however, was probably thet same as the most popular thing today.
Cyberspace
Brandon Massey
Do you mean something that really exists today but was represented in science fiction some time before? Cphones and the Star Trek "communicators"
Robert Heinlein became famous by writing popular science fiction novels. Typically, Robert Heinlein is referred to as "the dean of science fiction writers".
Why wouldn't it be? There are no laws that establish what genres are acceptable to be broadcast, nor should there be.