Tag: NASA dark matter

Technology

No Gamma rays from a dwarf galaxy solve an astronomical puzzle with the help of NASA

Lack of Gamma rays from a dwarf galaxy have helped to solve an astronomical puzzle of the Fermi bubbles. NASA came to the aid with its Fermi Gamma Ray Space Telescope. A glowing blob known as “the cocoon”, which appears to be inside one of the enormous gamma-ray emanations from the centre of our galaxy dubbed the “Fermi bubbles”, has puzzled astronomers since it was discovered in 2012.In new research published in Nature Astronomy, we show the cocoon is caused by gamma rays emitted by fast-spinning extreme stars called “millisecond pulsars” located in the Sagittarius dwarf galaxy, which orbits the Milky Way. While our results clear up the mystery of the cocoon, they also cast a pall over attempts to search for dark matter in ...