A study of supernova remnant SNR 0519-69.0 using the Chandra X-ray telescope, Hubble and more has narrowed down its age to several hundred of years. The remnant is located in the "Large Magellanic ...

When a massive star explodes, it releases enormous amounts of energy, radiation, and particles into space. Scientists have studied what would happen if such an event occurred close to Earth. The ...

Forty years after the Challenger disaster, NPR explores the engineers' last-minute efforts to stop the launch, their decades ...