NASA’s NuSTAR mission proves superstar Eta Carinae shoots cosmic rays

July 3, 2018

A new study using data from NASA’s NuSTAR space telescope suggests that Eta Carinae, the most luminous and massive stellar system within 10,000 light-years, is accelerating particles to high energies — some of which may reach Earth as cosmic rays. “We know the blast waves of exploded stars can accelerate cosmic ray particles to speeds […]

A bolt of insight

May 17, 2018

In the western Utah desert, the Telescope Array sprawls across an area the size of New York City, waiting for cosmic rays. The facility detects the high-energy particles that collide with Earth’s atmosphere constantly; the cosmic rays trigger the 500-plus sensors once every few minutes. While pouring over data in 2013, Telescope Array physicists discovered […]