ALMA Scientists Uncover the Mystery of Early Massive Galaxies Running on Empty

Early massive galaxies—those that formed in the three billion years following the Big Bang—should have contained large amounts of cold hydrogen gas, the fuel required to make stars. But scientists observing the early Universe with the Atacama Large Millimeter/submillimeter Array (ALMA) and the Hubble Space Telescope have spotted something strange: half a dozen early massive galaxies that ran out of fuel.

Scientists Observe Gas Re-accretion in Dying Galaxies for the First Time

A new study from scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) suggests that previously displaced gases can re-accrete onto galaxies, potentially slowing down the process of galaxy death caused by ram pressure stripping, and creating unique structures more resistant to its effects.

University of Chicago undergrads discover bright lensed galaxy in the early universe, despite pandemic barriers

A class of undergraduate astrophysics students at the University of Chicago helped discover a galaxy that dates back to a time when the universe was only 1.2 billion years old, about one-tenth of its current age.