Observations by NASA’s Swift spacecraft, now renamed the Neil Gehrels Swift Observatory after the mission’s late principal investigator, have captured an unprecedented change in the…
This artist’s rendering shows the tidal disruption event named ASASSN-14li, where a star wandering too close to a 3-million-solar-mass black hole was torn apart. The…
This animation captures phenomena observed over the course of nine days following the neutron star merger known as GW170817. They include gravitational waves (pale arcs),…
Using the Swift Satellite Observatory, scientists reveal what was likely the most luminous white dwarf eruption ever seen. Astronomers have today announced that they have…
Using NASA’s Spitzer and Swift missions, as well as the Belgian AstroLAB IRIS observatory, astronomers reveal new details on one of the most mysterious stellar…
In a new study, astronomers modeled observations of the black hole X-ray binary V404 Cygni during the most active phase of its June 2015 outburst….
Using NASA’s NuSTAR telescope, a team of astronomers reveals that in the late stages of galaxy mergers, so much gas and dust falls toward a…
Using observations from NASA’s Swift satellite, a team of astronomers detail the tidal disruption event named ASASSN-14li. Some 290 million years ago, a star much…
Using NASA’s Spitzer and Swift Space Telescopes, astronomers discovered a brown dwarf when it and its star passed between Earth and a much more distant…
Using data from the Swift Satellite, astronomers have identified the reflections of X-ray flares erupting from a star that was shattered by a black hole….
Using the XMM-Newton X-ray observatory, a team of astronomers has discovered a vast cloud of high-energy particles around a rare ultra-magnetic neutron star for the…
A newly published study details evidence for the interaction between a normal Type Ia supernova and a non-degenerate binary companion. A team of astronomers including…
New observations from NASA’s Swift and the Nuclear Spectroscopic Telescope Array, suggest that supermassive black holes send out beams of X-rays when their surrounding coronas…
Using three X-ray telescopes, astronomers have witnessed stellar debris being blown away after a black hole destroyed the star. This event, dubbed ASASSN-14li, is located…
Since June 15, astronomers have been monitoring the ongoing light show detected by NASA’s Swift satellite. This new outburst is from V404 Cygni, a binary…
Astronomers used the magnifying effect of the stars to ‘zoom in’ on galaxy PKS 1830-211, revealing very small structures in the distant galaxy. The Integral,…
NASA’s Kepler and Swift spacecraft provides new insight into what triggers a Type Ia supernova, allowing astronomers to better calibrate Type Ia supernovae as standard…
Using data from NASA’s Swift satellite and observations from many other facilities, an international team of astronomers has discovered an unusual source of light in…