Superclusters – regions of space that are densely packed with galaxies – are the biggest structures in the Universe. But scientists have struggled to define exactly where one supercluster ends and another begins. Now, a team based in Hawaii has come up with a new technique that maps the Universe according to the flow of galaxies across space. Redrawing the boundaries of the cosmic map, they redefine our home supercluster and name it Laniakea, which means ‘immeasurable heaven’ in Hawaiian.
A seafloor mandala created by a five inch male pufferfish to attract females. The males spend seven to nine days swimming back and forth while hitting the sand with fins and tail in strategic spots. They also adorn the peaks with shells and coral. The circles can be up to seven feet in diameter. After a mate is attracted, they mate and she lays her eggs in the center of the circle. The male sticks around till the eggs hatch, but no longer maintains the circle once the task of attracting a female has been successfully accomplished. Amazing!
h/t Inspiration Green