Free Astronomy Magazine March-April 2025

MARCH-APRIL 2025 allows astronomers to see the fainter details of these superstructures, such as the diffuse light between the clus- ter galaxies, which is a combination and faded light from the nearby Antlia Supernova Remnant discov- ered in 2002. NSF–DOE Vera C. Rubin Observatory’s upcoming Legacy Survey of Space and Time will be the first astronomical sur- vey to provide scientists with the data they need to detect intracluster light in thousands of galaxy clusters, unlock- ing clues to the distri- bution of dark matter around galaxy clusters and the evolutionary history of the Universe on large scales. T his video highlights the latest observa- tion of the Antlia Clus- ter by the Dark Energy Camera. [Images and Videos: Dark Energy Survey/DOE/FNAL/ DECam/CTIO/NOIRLab/ NSF/AURA/T. Slovin- ský/R. Colombari & M. Zamani (NSF NOIR- Lab)/N. Bartmann (NSF NOIRLab) − Music: Stel- lardrone - Airglow] of intracluster light — the feeble glow of stars flung out into the gravitational field of the cluster by the churn of interacting galaxies — !