Why does the Milky Way have spiral arms? New Gaia data are helping solve the puzzle

Three Dwarf Spheroidal Galaxies Discovered to Be Rotating in Orbit Around the Milky Way

Unknown Objects in Inner-Most Orbit of Milky Way’s Supermassive Black Hole

We found a new type of stellar explosion that could explain a 13-billion-year-old mystery of the Milky Way’s elements