Project
Chinese-led X-ray astronomy satellite with wide-field telescopes that scans the sky for transient and faint X-ray sources like gamma-ray bursts and supernovae.
Astronomers attribute EP250704a, a half-second gamma-ray burst followed by 10 minutes of X-rays, to two neutron stars colliding. The event gives them a test case for the hundreds of X-ray flashes Einstein Probe has logged since its 2024 launch, some of them still unexplained.
Reality
Einstein Probe recorded nearly ten minutes of soft X-rays after a short gamma-ray burst whose flash lasted under half a second. By the team's estimate the tail was too soft for gamma-ray instruments to register, so earlier missions would have logged only the flash.
Reality
Einstein Probe saw a likely neutron star merger shine in soft X-rays for nearly 10 minutes after a 0.4-second gamma-ray burst. Its team argues gamma-ray detectors alone may have missed this phase in earlier mergers, a case that so far rests on one event.
Reality
Einstein Probe recorded nearly ten minutes of X-ray light from a July 2025 neutron-star merger whose gamma-ray burst lasted about half a second. The team links the long glow to a newborn magnetar, a reading that so far rests on this single event.
Perspective Coverage
3 publishersReality
The Einstein Probe found the X-ray tail of PSR J1740+1000 running about 42 light-years southwest, in the same direction as ultrahigh-energy gamma rays LHAASO had no clear counterpart for.
Reality
Einstein Probe's fourth X-ray-flash supernova was too faint to confirm on its own. A wide-field optical survey looking at the same sky made it a data point.
Reality