"It’s kind of a jigsaw puzzle where all the different pieces are moving."
The center of the Milky Way is an extreme environment dominated by the supermassive black hole (SMBH) Sagittarius A star (Sgr A-star). Sgr A-star has about 4 million solar masses, and its powerful gravity and radiation defines the region. Its gravity accelerates the orbits of stars and gas clouds in its vicinity. Radiation from the SMBH's accretion processes, from the stellar winds coming from colliding stars, from abundant supernovae explosions, and from superheated gas falling toward the black hole, saturates the region.

