Researchers from the Center for Astrophysics (CfA) | Harvard & Smithsonian have recently generated a 3D magnetic map of the cavity called Local Bubble.
About Local Bubble
- The Local Bubble is a 1,000-light-year-wide cavity or a super bubble. Which exist in the Milky Way.
- It is thought to have originated from supernovae roughly 14 million years ago.
What is a supernova?
- It is a class of violently exploding stars whose luminosity after eruption suddenly increases many millions of times its normal level.
- Supernovae explosions release tremendous amounts of radio waves and X-rays and also cosmic rays.
Q1) What is the nearest exoplanet to earth?
The Proxima Centauri b is our closest known exoplanet which is only four light-years away from the earth.
Source: A bubble of secrets: Here’s what the new 3D map of a gigantic cosmic cavity tells us about the universe