Astronomers Detect Hydrogen Signals From Billions of Years Ago, Paving Way for New Universe Maps

Summary

Astronomers have used the MeerKAT radio telescope to detect hydrogen gas from billions of years ago, a breakthrough that could lead to a new method of mapping the universe's large-scale structure. This technique, known as hydrogen intensity mapping, traces faint radio signals from neutral hydrogen to build a 3D picture of cosmic structures, offering a new way to study galaxy evolution and matter distribution.