The solar system is in a big bubble. Scientists suspect why this is so
The solar system is quite an interesting place in the Milky Way. It is in a huge bubble that spans a thousand light years. Scientists decided to map this area of our galaxy with the greatest precision so far. This made it possible to discover the origin of the emptiness that surrounds us.
The solar system is a specific place in our galaxy. It floats in an area that is extremely empty. There is a high-temperature, low-density plasma. The place is over a thousand light years across . Scientists set out to find answers to questions related to this area of the Milky Way.
A team of astronomers led by the Harvard & Smithsonian Center for Astrophysics (CfA) has undertaken the most precise attempt to map a Local Bubble. Thanks to this, it was possible to obtain answers related to its origin. All indications are that it was “cut” from the interstellar medium . What was the cause of this?
Artistic vision presenting Bąbel Lokalny – Leah Hustak / STScI
Astronomers point to numerous supernova explosions . This seems to be confirmed also by previous research results, which say that the Local Bubble continues to expand . However, regions around its circumference show increased star formation.
The Local Bubble was discovered several decades ago. This happened in the 1970s and 1980s as a result of a combination of optical, radio and X-ray astronomy. Scientists have calculated that it is expanding at a speed of about 6.7 km per s.