Combined with data from X-ray and visible light observations, AST / RO data shows that gas clouds have reached near critical density. When this density is exceeded, the clouds will fall into the center of the Milky Way. The resulting compression will lead to a dramatic increase in star births.
"Many of the resulting stars will be very massive and short-lived, " says Martin. "They will consume their fuel very quickly and explode as a supernova. Currently, we can observe one supernova explosion per century in our Milky Way galaxy. When the compression occurs, we will see one supernova a year. "The remnants of many of these supernova explosions will then give rise to stars of longer lifetimes, such as our Sun.
This process is likely to recur in a cycle of 500 million years. When the gas near the galactic center is exhausted, the gas further away will condense and fall toward the center. The black hole in the center of the Milky Way also "benefits" from this event. As matter falls in a spiral on the black hole, it emits massive matter jets at its north and south poles. display
"We are lucky that these jets are ejected perpendicular to the Milky Way plane. Otherwise, the earth would be sterilized by every life every 500 million years, "says Stark.Axel Tilleman