• UGI USER
  • Jan 18, 2023
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Local Bubbles: Giant Cosmic Cavity

News: The mysteries of the cosmos, particularly those pertaining to the creation of stars, may be revealed by new study on a vast cosmic void that envelops the solar system.

 

  • A 3D magnetic map of the hollow known as the Local Bubble has been created by scientists from the Center for Astrophysics (CfA) at Harvard and the Smithsonian.
  • The Local Bubble is a superbubble with a diameter of 1,000 light-years. There are further superbubbles in the Milky Way.
  • The Local Bubble is a sizable, low-density area in the Milky Way’s interstellar medium (ISM).
  • The substance that encloses the void between stars is known as the interstellar medium.
  • It’s a cavity that was allegedly made by a string of supernova explosions that took place between 30 and 50 million years ago.
  • When a large star reaches the end of its life, it explodes in a bright and powerful manner known as a supernova.
  • It results from the star’s core collapsing, which can lead to a significant energy release.
  • Supernovae are crucial for both the transmission of cosmic rays and the enriching of the interstellar medium with heavy metals.