Map of the migration of modern humans out of Africa, based on
mitochondrial DNA. Colored rings indicate thousand years before present
The
Fraser spiral illusion (made of concentric circles) says something about visual perception, and is a forerunner of
op art
Huangshan, one of the most amazing mountain ranges in the world
Jovian clouds in striking shades of blue as captured by NASA’s Juno spacecraft
Relative sizes of the planets in the Solar System and several well known stars
Computer-simulated view of the
large-scale structure of a part of the universe about 50 million light years across[2]
References
^Koene, J. M. (2006). "Tales of two snails: sexual selection and sexual conflict in Lymnaea stagnalis and Helix aspersa". Integrative and Comparative Biology. 46 (4): 419–429.
doi:
10.1093/icb/icj040.
PMID21672754.