NASA was watching a ferocious supernova, but what it spotted was even stranger

While observing a large supernova in the ‘Fireworks’ galaxy, researchers accidentally captured imagery of a brief, bright spot in the same galaxy that didn’t originate from the supernova. This spot wasn’t visible in the initial NASA NuSTAR observation but was spied a little over a week later in a followup observation by the space agency’s Chandra X-ray Observatory. The image … Continue reading