This undated image made available by the European Space Agency and NASA shows galaxies in the Abell 2744 cluster, and blue galaxies behind it, distorted and amplified by gravitational lensing. The long-exposure image taken with NASA`s Hubble Space Telescope shows some of the intrinsically faintest and youngest galaxies ever detected in visible light.
This image provided by NASA shows loose, BB-sized, hematite-rich spherules embedded in this Martian rock like blueberries in a muffin and released over time by erosion. The Mars Rover Opportunity found this cluster of them at its Eagle Crater landing site and analyzed their composition with its spectrometers.
A protester wearing a mask of a pig depicting North Korean leader Kim Jong Un, left, and another wearing a mask of former NBA player Dennis Rodman, who is currently in Pyongyang with fellow former NBA players for a basketball game against a team of North Koreans, perform during an anti-North Korea rally on what is believed to be the birthday of Kim, in Seoul, South Korea.