On the evening of Tuesday, January 18, 2022, NASA’s Neil Gehrels Swift Observatory entered into safe mode, suspending pointed science observations. The mission team is…
An international team of researchers, led by postgraduate student Alexis Andrés, has found that the black hole at the center of our galaxy, Sagittarius A*,…
Using the H.E.S.S. observatory, researchers at GRB 190829A observe unusual features that challenge models. Researchers from the H.E.S.S. Collaboration succeeded to derive the intrinsic spectrum…
Observation challenges established theory of gamma-ray bursts in the universe. Scientists have gained the best view yet of the brightest explosions in the universe: A…
For only the second time, astronomers have linked an elusive particle called a high-energy neutrino to an object outside our galaxy. Using ground- and space-based…
During a typical year, over a million people visit Yellowstone National Park, where the Old Faithful geyser regularly blasts a jet of boiling water high in…
Using data from facilities including NASA’s Neil Gehrels Swift Observatory and Transiting Exoplanet Survey Satellite (TESS), scientists have studied 20 instances and counting of regular…
A pair of distant explosions discovered by NASA’s Fermi Gamma-ray Space Telescope and Neil Gehrels Swift Observatory have produced the highest-energy light yet seen from…
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….