Gravity, one of the four fundamental forces of nature, appears reassuringly constant across the universe, according to a decades-long study of a distant pulsar. This research helps to answer a ...

For a long time, scientifically-minded folks (or at the very least, proto-scientific philosophers) assumed that the rules that governed our daily lives here on poor old Earth were radically different ...

I didn't see the latest version of the movie Total Recall (2012). However, I heard some people talking about the elevator scene. Here is what I gather from the plot (which could be wrong). There are ...