At X-ray wavelengths, the celestial sky is dominated by two types of astronomical objects: supermassive black holes, sitting at the centers of large galaxies and ferociously devouring the material ...

NASA's NuclearSpectroscopic Telescope Array (NuSTAR) observatory has discovered 40previously unknown X-ray binaries in the nearby Andromeda galaxy(M31). Astronomers believe that these phenomena may ...

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 ...

High-mass X-ray binaries (HMXBs) constitute a crucial class of astrophysical systems in which a massive, early-type star transfers matter to a compact object—commonly a neutron star or black hole—via ...

image: Scientists with the Hard X-ray Modulation Telescope (Insight-HXMT) team presented their new results on black hole and neutron star X-ray binaries during a press conference held Oct. 25 at the ...

Using ESA's XMM-Newton satellite, Italian astronomers have observed a Galactic X-ray binary system known as 4U 0728-25. Results of the new observations, presented in a research paper published March ...

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 ...

The European Space Agency has discovered a mind-blowingly awesome celestial phenomenon. Most of the light emitted in the X-ray spectrum in the universe comes from the supermassive black holes at the ...

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 ...