This threw me at first. There was an NASA X-ray imaging telescope in the late 70s/early 80s called Einstein:
https://heasarc.gsfc.nasa.gov/docs/einstein/heao2.html
But this is a new Chinese instrument, also an X-ray telescope, also called Einstein:
This is not very newsworthy, stellar flares are common and known to emit X-rays.
Article in https://arxiv.org/abs/2512.16679