Milky Way could be catapulting stars into its outer halo. Astronomers have shown that clusters of supernovas can cause the birth of scattered, eccentrically orbiting suns in outer stellar halos, upending commonly held notions of how star systems have formed and evolved over billions of years. Source 7s.
Massive halo finally explains stream of gas swirling around the Milky Way. Astronomers have discovered that a halo of warm gas surrounding the Magellanic Clouds likely acts as a protective cocoon, shielding the dwarf galaxies from the Milky Way's own halo and contributing most of the Magellanic Stream's mass. Source 7e.
The Milky Way may be swarming with planets with oceans and continents like here on Earth. According to a new study, Earth, Venus and Mars were created from small dust particles containing ice and carbon. The discovery opens up the possibility that the Milky Way may be filled with aquatic planets. Source 4y.