How far the Milky Way's disk extends has long been difficult to define—it doesn't end sharply, but fades away gradually at its outer edges. Now, for the first time, an international team of ...
In general, in disk-shaped galaxies like the Milky Way, stars form from the inside out. Therefore, the further you go from the outer edge of the observed galaxy, the younger the stars will be, but the ...
A new study led by researchers at the Institute of Cosmos Sciences of the University of Barcelona (ICCUB) and the Institute of Space Studies of Catalonia (IEEC) reveals how the disks of galaxies like ...