A newly discovered network of light-year-long filaments near the Milky Way’s core reveals unexpected clues about the past activity of Sagittarius A*. A newly reported population of vast, thread-like structures stretching across several light-years has been identified near the center of the Milky Way, offering a striking new clue about the behavior of Sagittarius A. Published in The Astrophysical J... [5002 chars]