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    NASA-funded rocket solves cosmic mystery

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    A NASA-funded sounding rocket to study the origin of X-rays in the universe has helped scientists reveal a new mystery – an entire group of X-rays that don’t come from any known source. Some of this invisible light that fills space takes the form of X-rays, the source of which has been hotly contended over the past few decades.

    In a new study, DXL’s data confirms some of our ideas about where these X-rays come from, thus strengthening our understanding of our solar neighbourhood’s early history.The two known sources of X-ray emission are the solar wind and the Local Hot Bubble – a theorised area of hot interstellar material that surrounds our solar system.

    one supernova wouldn’t be enough to create such a large cavity and reach these temperatures – so it was probably two or three supernova over time, one inside the other.

    according to astrophysicist  of Middle Tennessee State University , Identifying the X-ray contribution of the Local Hot Bubble is important for understanding the structure surrounding our solar system It helps us build better models of the interstellar material in our solar neighbourhood.

    According to Massimiliano Galeazzi, astrophysicist at University of Miami, the X-ray contribution from the solar wind charge exchange is about 40 percent in the galactic plane, and even less elsewhere So the rest of the X-rays must come from the Local Hot Bubble, proving that it exists.

     

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