The cosmic void (or aether) is surrounded by multiple star-forming regions created by the explosions. Earth is slapped in the middle of a 1,000 light-year-wide bubble with a dense surface that gives birth to thousands of small stars. This “bubble” of energy, for the astronomers who in the 70s discovered for the first time the gigantic void, known as the Local Bubble, would be none other than the famous ETHER. The ether is not empty but full of energy. The only stars inside the bubble existed before the bubble emerged or formed outside the void and are now crossing; the sun is one of these offenders.
This configuration had suggested that several supernovae were responsible for this vacuum. Those stellar bursts, the researchers said, would detonate the materials needed to create new stars, such as hydrogen gas, at the edge of a huge area in space, leaving behind the Local Bubble that is surrounded by a frenzy of stellar births. .
In a new study, published online Jan. 12 in the journal Nature, the researchers carefully mapped the star-forming regions surrounding the local bubble and, in doing so, calculated how fast the superbubble was expanding. This allowed the team to calculate exactly how many supernovae were needed to carve out the giant cosmic void and better understand how star-forming regions across the Milky Way are created.