A new international study involving The University of Sydney, The Australian National University (ANU) and the ARC Centre of Excellence in All-Sky Astrophysics in 3D (ASTRO 3D) has found that galaxies grow bigger and puffier as they age. “Galaxy shape and age are not...
The outer “halo” region of the Milky Way contains the vast majority of the mass of the Galaxy. Unlike the Galaxy’s spiral arms, which contain bright stars, the halo is mostly dark, but they do contain some globular clusters of stars, some of the oldest stars in the...
Large galaxy clusters are the most massive structures in the Universe, comprising 10,000’s of galaxies. As predicted by Einstein, their large mass causes them to act as efficient ”cosmic telescopes” (called gravitational lenses), amplifying and boosting the size and...
ASTRO 3D researchers have revealed the “DNA” of more than 340,000 stars in the Milky Way, which should help them find the siblings of the Sun, now scattered across the sky. This is a major announcement from an ambitious Galactic Archaeology survey, called GALAH,...
ASTRO 3D astronomers are studying the process by which the structures in the Universe first formed, using low-frequency radio waves. The Epoch of Reionisation refers to the period in the history of the Universe during which the neutral hydrogen gas was ionised...
