1. "Astronomers May Have Detected Multiple Structures in the Milky Way's Halo" (January 2020): This article discusses recent research that suggests that the Milky Way's halo may be composed of multiple structures, rather than a single one. The research, which was conducted using data from the European Space Agency's Gaia mission, has detected evidence of several structures in the Milky Way's halo. The structures may help to explain the origin of the Milky Way's stellar halo, and provide new insight into the formation and evolution of the galaxy. 2. "The Milky Way's Black Hole is Growing Faster Than Ever Before" (January 2020): This article discusses a recent study which found that the Milky Way's supermassive black hole is growing faster than ever before. The researchers used data from the Chandra X-ray Observatory to measure the rate of growth of the black hole, and found that it is increasing more quickly than in the past. The study also found that the black hole is consuming large amounts of gas and dust, which could help explain its rapid growth. 3. "Mysterious Star Streams Highlight Milky Way's Violent History" (February 2020): This article discusses a recent study which found evidence
Astronomers have watched the supermassive black hole at the center of the Milky Way galaxy, Sagittarius A*, stretch apart a cosmic cloud called X7. The cloud is being tugged apart by extreme gravitational forces and will soon dissipate.