Ultra-bright X-ray source awakens after 26 years in a galaxy not-so-far away

Ultra-bright X-ray source awakens after 26 years in a galaxy not-so-far away

A new ultra-bright X-ray source has awakened after 26 years near our galactic neighbors the Magellanic Clouds. This is the second-closest ultra-bright X-ray source to date, with brightness more powerful than a million suns. The object, called RX J0209.6-7427, was…

NuSTAR discovers first ultraluminous pulsar, impossibly bright dead star

NuSTAR discovers first ultraluminous pulsar, impossibly bright dead star

Astronomers working with NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) have found a pulsating dead star beaming with the energy of about 10 million suns. The object, previously thought to be a black hole because it is so powerful, is in fact a pulsar – the