Gravitational arcs in ‘El Gordo’ galaxy cluster

A new image of the galaxy cluster known as ‘El Gordo’ is revealing distant and dusty objects never seen before, and providing a bounty of fresh science. The infrared image displays a variety of unusual, distorted background galaxies that were only hint…

Learning how to control HIV from African genomes

A study on almost four thousand people of African descent has identified a gene that acts as natural defense against HIV by limiting its replication in certain white blood cells. This research paves the way for new treatment strategies and underscores …