Intracluster light in MACSJ0416
This image from the NASA/ESA Hubble Space Telescope shows the galaxy cluster MACS J0416. This is one of six being studied by the Hubble Frontier Fields programme, which together have produced the deepest images of gravitational lensing ever made.
Scientists used intracluster light (visible in blue) to study the distribution of dark matter within the cluster.
Last Update: 1 September 2019