Why does Special Relativity imply something moving faster than light would travel backwards in time?

This is a good explanation of why special relativity suggests something moving faster than the speed of light would also travel backwards in time.

New experiment to test a theory of time travel involving postselected closed timelike curves

This post at Next Big Future summarizes an experiment to test the theory of Closed Timelike Curves via postselection. The article includes links to the paper describing the experiment as well as earlier papers describing the theory and proposing the experiment.

Closed Timelike Curves via Postselection: Theory and Experimental Test of Consistency

What are the laws of physics anyway?

Physics might be defined as the subject that tries to figure out why the world may look incomprehensibly complex at first, but on closer examination is governed by simple laws. Those laws, applied repeatedly, build up the complexity. From this definition, you'd presume that physicists have at least sorted out what they mean by "law".

What are the laws of physics anyway?

The Myth of the Beginning of Time

This is a good article from 2004 in Scientific American

The origin of the universe and the arrow of time. Sean Carroll

From SlowTV:

Sean Carroll's Theory of Time

This is an interesting idea from Sean Carroll. In a virtually empty universe there is no causality, and therefore no clear direction of time. Just random fluctuations.
From these fluctuations new universes are born.

Wired magazine interview with Carroll.

What is reality

Good site covering the "big questions" concerning the nature of reality.

What is reality?

Paper speculates time dimension could transform

...into space like dimension.

Some light reading