The Science in Science Fiction
Alien Life – What constitutes life? What will alien life be like?
Aliens Physiology – Aliens should be aliens and not humans in rubber suits or humans with a small amount of makeup to make the bridge of their noses look different. What will alien sex be like?
Alien Psychology – What makes an alien tick?
Physics fo FTL Travel – How do we go faster than light?
Baby Black Holes – Ideas about very tiny black holes and how they may behave.
Properties of a uniformly expanding universe – A simple theory about what might explain the fact that space probes seem to speed up as they move away from the solar system.
Quantum Mechanics or Whatever Happened to Reality? – I discussion of the Afshar Experiment.
List of stars closer than 20 light years SF writers often need a nearby star. Here is a nice list.