Cosmic rays -- tiny particles zipping through space at nearly the speed of light -- change course due to magnetic fields in our galaxy before reaching Earth. This means we can’t pinpoint where they come from. Now, astronomers using data from NASA’s NuSTAR mission, in combination with findings from the NASA Fermi Gamma-ray Space Telescope and ESA - European Space Agency’s XMM-Newton satellite, have connected the powerful stellar winds of the star system Eta Carinae with the acceleration of cosmic