Mystery Of The Milky Way’s Particle Accelerators Solved

Mystery Of The Milky Way’s Particle Accelerators Solved

Image of part of a stellar remnant whose explosion was recorded in 185 A.D.  

Thanks to a unique “ballistic study” that combines data from ESO’s Very Large Telescope and NASA’s Chandra X-ray Observatory, astronomers have now solved a long-standing mystery of the Milky Way’s particle accelerators. They show in a paper published today on Science Express that cosmic rays from our galaxy are very efficiently accelerated in the remnants of exploded stars.

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Spitzer Space Telescope Celebrates 5th Birthday

Spitzer Space Telescope Celebrates 5th Birthday 

 Star-forming region in the constellation Cassiopeia.

NASA’s Spitzer Space Telescope, the last of the space agency’s Great Observatories satellites to launch, celebrated its fifth birthday recently… giving me the opportunity to post this amazing multigenerational picture of star-forming region in the constellation Cassiopeia, 6,500 light-years from Earth. The photo takes in an area equivalent to four full moons and puts on show how one generation of massive stars can give birth to the next.

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