Video Credit: NASA
Video Credit: NASA
Vide Credit: NASA
Those squiggly blue lines (most of which are to the right of the frame) are all images of the same galaxy, its light having been gravitationally lensed by the Abell 3827 galaxy cluster. The same galaxy is visible in six different locations in the picture.
Image Credit: NASA / ESA
This Hubble image shows the light from a distant quasar being gravitationally lensed by a pair of closer galaxies. The quasar shows up in five places in the image. The four bright spots are obvious. The fifth is a dark spot near the center caused by an interference effect resulting from two galaxies bending the light.
Video Credit: ESA
Gravitational lensing occurs when light from a distant galaxy is bent by the gravitational pull of an intervening astronomical object. In this image assembled from multiple observations by the Hubble Space Telescope a relatively nearby galaxy cluster (MACSJ0138.0-2155) has lensed the galaxy (MRG-M0138) which is located 10 billion light-years from us.
Image Credit: NASA / ESA