1. 13 things that do not make sense
   

Very interesting read about what 13 topics that science does not fully understand yet... the placebo effect and dark matter are two of them.

1. The Vega Science Trust
   

In this site you will find scientific lectures and interviews to scientists. Some lectures are very informative and for the general public. Others are more advanced, like those from Richard Feynman.

1. Mathematical thinking in physics
   

Short and even funny essays about the irrationality of the square of 2, the energy of sunlight over a 12 hour period, and what if an asteroid hit the Earth, to give a few examples.

1. Space Time travel
   

Very cool visualizations of the implications of Einstein’s theory of relativity. Watch what you would see if you could fly through a city at nearly the speed of light.