NASA Monitors a Rare X-ray Outburst from a Stellar-Mass Black Hole
Astronomers around the world are watching the onset of a rare X-ray outburst from a stellar-mass black hole in the binary system V404 Cygni. On…
Astronomers around the world are watching the onset of a rare X-ray outburst from a stellar-mass black hole in the binary system V404 Cygni. On…
Researchers at Brown, Carnegie Mellon, and Cambridge have detected gamma-ray emissions from dwarf galaxy Reticulum 2. This detection may be the signal of dark matter…
Using Hubble’s Cosmic Origins Spectrograph, new research presented at the 225th American Astronomical Society meeting in Seattle reveals the velocity and composition of gas in…
A short video details how scientists merged data on high-energy bursts seen on Earth by NASA’s Fermi Gamma-ray Space Telescope with data from ground-based radar…
Using data from NASA’s Fermi Gamma-ray Space Telescope, astronomers have discovered underlying signals related to the rapid-fire “storm” of high-energy blasts detected in 2009 from…
Using NASA’s Nuclear Spectroscopic Telescope Array, astronomers have discovered a pulsar spinning five times per second and the ultimate power source of both the high-energy…
New measurements by NASA’s Fermi Gamma-ray Space Telescope reveal a binary star system whose pulsar switched from radio emissions to high-energy gamma rays. Zoom into…
A team of astronomers has used Fermi data to reveal how blazars are distributed throughout the universe and to show the distinctive properties that define…
An international team of astronomers has for the first time confirmed a link between the gamma bursts and their counterparts in several radio frequencies, solving…
New maps from the Fermi-LAT Collaboration show that the galactic center produces more high-energy gamma rays than can be explained by known sources, suggesting that…
This newly released Spitzer image shows the supernova in galaxy M82, the closest supernova of its kind to be observed in the last few decades….
Using gamma-ray observations, astronomers discover a record-breaking black widow binary. Black widow spiders and their Australian cousins, known as redbacks, are notorious for their tainted…
Swift’s Ultraviolet/Optical Telescope shows before and after images of supernova SN 2014J, which occurred 12 million light-years away in galaxy M82. An exceptionally close stellar…
Using data from the Fermi Gamma-ray Space Telescope, researchers have discovered a pulsar that varies in the amount of gamma-ray radiation it emits. Astrophysicists studying…
Using NASA’s Fermi observatory, researchers have made the first-ever gamma-ray measurements of a gravitational lens, opening new avenues for research and providing a new way…
Five newly published studies from astronomers around the world detail one of the brightest gamma-ray bursts ever seen, GRB 130427A. On April 27, a blast…
Using data from Chandra and the VLA, astronomers uncovered new evidence for the presence of a jet of high-energy particles blasting out of the Milky…
NASA’s Fermi Space Telescope completes five years of space exploration, now scientists prepare for several more years of observations as Fermi enters an extended phase…