Twinkle, twinkle, many stars! Several stars and distant galaxies are visible in NASA’s Hubble Space Telescope’s view of a galaxy cluster. The light from this cluster took more than 5 billion years to reach us, while the light of the more distant galaxies seen had to travel even longer than that, making this image an extremely old window into the far reaches of the universe. Take a closer look: http://go.nasa.gov/2EBGx5W
