It's like 'Jekyll and Hyde' in space! When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A volatile double star system appears to change its ...

ESA’s Integral gamma-ray observatory has discovered a new, highly populated class of X-ray fast ‘transient’ binary stars, undetected in previous observations. With this discovery, Integral confirms ...

Using various space telescopes, an international team of astronomers have observed a newly detected very faint X-ray ...

An international research team has reported remarkable findings from an XRISM observation of the black hole X-ray binary 4U 1630–472, located in our galaxy. XRISM is an X-ray astronomy satellite ...

ESA’s XMM-Newton has discovered gas streaming away at a quarter of the speed of light from very bright X-ray binaries in two nearby galaxies. At X-ray wavelengths, the celestial sky is dominated by ...

Astronomers uncovered that a well-known X-ray binary, whose exact nature has been a mystery to scientists until now, is actually a hidden ultraluminous X-ray source. X-ray binaries are intriguing ...

Neutron stars—the dense remnants of massive stellar explosions—and their presence in X‐ray binaries serve as natural laboratories for extreme physics. In these systems, matter is transferred from a ...

On May 26, 1983, the European Space Agency launched its first X-ray Observatory into space. The spacecraft was called EXOSAT, which stands for European X-ray Observatory SATellite. The mission was ...

Discovered in the early 1960s by rocket-borne X-ray detectors, Cygnus X-1 is a binary system containing a supergiant star and a stellar-mass black hole. That black hole is both accreting matter — ...

Astronomers are observing an unusual black hole which is surrounded by enormous X-ray rings. Using the Chandra X-ray Observatory and the Neil Gehrels Swift Observatory, researchers have been ...

A research team has shed new night on the massive star and its neutron star companion, which are thought to be at the core of the gamma-ray binary system LS 5039. A team of researchers led by members ...