Nobel 2011

The universe is expanding at an accelerated rate. Image: NASA

Third Nobel Prize in Cosmology

Figure 3. Different types of symmetry in crystals. The pattern of the 5th order symmetry crystal will never repeat itself.

On minerals, knits and gems

Milestones in the expansion of the universe. From Wikipedia

The cold end of the universe

Figure 1. Daniel Shechtman's interference pattern had an axis of symmetry of order 10: rotating the image by a tenth of a complete circle (36 degrees) led to obtaining the same pattern.

Crystals with golden ratios - the full text

quasi-crystals. From Wikipedia

On quasi-crystals and the golden ratio