“Fast-paced physical action and political intrigue…The thrill is in the quest and unexpected discoveries.”

“Most widely read…romantic adventure on a grand scale – interstellar travel, heroic space battles…Many space operas are written in series format.”

“Warriors, weapons and battles provide the big attraction to readers…”

“…into the past, into the future, or in both directions…”

“Robot – machine, mechanical Android – artificial human Cyborg – Human altered with artifcial parts.”

“Sometimes the very worst of worlds are those that were created by those who thought they were creating perfection…”

“Societal evolution over time, influenced by biology or environment…”

“The effect of spiritual beliefs, moral codes and religious fervor on society and its inhabitants…”

“Earths or universes existing simultaneously, perhaps along a spatial 4 th dimension…”

“Exploring DNA, genetics, cloning – taking biology to another level…”

“Apocalyptic events or environmental disasters present a pessimistic view of the future…”

“First contact – what will aliens look like, and how will humans interact with them…”

“A collaboration of authors either working together or building on the work of another…often based on worlds and characters created for films or video games…”

“Lots of information about artificial intelligence (AI), nanotechnology, virtual reality and beyond. Much of current “hard” SF and dark themed SF appears in this category….”