The supermassive black hole at the center of our galaxy, known as Sagittarius A* or Sgr A*, is usually quiet and inactive. However, new research shows it was much more active in the past. Scientists have found that over the last 1,000 years, Sgr A* produced powerful flares, which came as a surprise to astronomers, according to Space.com.
This discovery was made possible with the XRISM spacecraft, an international mission involving Japan, Europe, and the United States. The findings could help scientists better understand how supermassive black holes evolve and how they affect the galaxies around them.
Astronomers were amazed by the results. Stephen Dikerby, the lead researcher from Michigan State University, said that even his experience in X-ray astronomy did not prepare him for such a discovery. He described it as an exciting advancement, providing new tools and methods for studying black holes.
Overall, the discovery shows that the black hole at the center of our galaxy has a more dynamic past than previously thought, opening new possibilities for understanding the universe and the role of black holes in shaping galaxies.