New Hubble view of galaxy cluster Abell 1689.
Image credits: NASA, ESA, the Hubble Heritage Team (STScI/AURA), J. Blakeslee
(NRC Herzberg Astrophysics Program, Dominion Astrophysical Observatory), and H. Ford (JHU)
This new image from Hubble is one of the best ever views of the massive galaxy cluster Abell 1689, and shows the phenomenon of gravitational lensing with unprecedented clarity. This cluster acts like a cosmic lens, magnifying the light from objects lying behind it and making it possible for astronomers to explore incredibly distant regions of space. As well as being packed with galaxies, Abell 1689 has been found to host a huge population of globular clusters.(read more)