NASA
NASA's Fermi Links Cosmic Neutrino to Monster Black Hole
For the first time ever, scientists using NASA's Fermi Gamma-ray Space Telescope have found the source of a high-energy neutrino from outside our galaxy. This neutrino traveled 3.7 billion years at nearl-light speed before being detected...
NASA
NASA | Our Violent Universe
Our universe is more than a serene landscape of stars--it is teeming with activity from some extremely violent events. In a presentation at the IMAX theatre at the Smithsonian National Air and Space Museum in Washington, D.C. on...
NASA
NASA | Fermi Finds a Youthful Pulsar Among Ancient Stars
In three years, NASA's Fermi has detected more than 100 gamma-ray pulsars, but something new has appeared. Among a type of pulsar with ages typically numbering a billion years or more, Fermi has found one that appears to have been born...
NASA
NASA | Fermi Helps Scientists Study Gamma-ray Thunderstorms
Merging data on high-energy bursts seen on Earth by NASA's Fermi Gamma-ray Space Telescope with data from ground-based radar and lightning detectors, scientists have completed the most detailed analysis to date of the types of...
NASA
NASA | Fermi Sharpens its High-Energy View - 4K
Major improvements to methods used to process observations from NASA's Fermi Gamma-ray Space Telescope have yielded an expanded, higher-quality set of data that allows astronomers to produce the most detailed census of the sky yet made...
NASA
NASA's Fermi Finds Vast 'Halo' Around Nearby Pulsar
A new study of observations from NASA’s Fermi Gamma-ray Space Telescope has discovered a faint but sprawling glow around a nearby pulsar. If visible to the human eye, this gamma-ray “halo” would appear larger in the sky than the famed...
NASA
NASA | Fermi's Close Call with a Soviet Satellite
NASA scientists don't often learn that their spacecraft is at risk of crashing into another satellite. But when Julie McEnery, the project scientist for NASA's Fermi Gamma-ray Space Telescope, checked her email on March 29, 2012, she...
NASA
NASA's Fermi Satellite Clocks a 'Cannonball' Pulsar
Astronomers using NASA's Fermi Gamma-ray Space Space Telescope and the National Science Foundation's Karl G. Jansky Very Large Array (VLA) have found a pulsar hurtling through space at nearly 2.5 million miles an hour -- so fast it could...
NASA
NASA | Fermi Proves Supernova Remnants Produce Cosmic Rays
A new study using observations from NASA's Fermi Gamma-ray Space Telescope reveals the first clear-cut evidence that the expanding debris of exploded stars produces some of the fastest-moving matter in the universe. This discovery is a...
FuseSchool
Types Of Radiation
Learn about the different types of radiation in this physics video from the virtual school. Alpha particles, beta particles and gamma rays... what are they and how do they differ?
Introducing 'Alpha Man', 'Beta Boy' and 'The Great Gamma'!
NASA
Fermi's Gamma-Ray Burst Monitor
The Gamma-ray Burst Monitor (GBM) is one of the instruments aboard the Fermi Gamma-ray Space Telescope. The GBM studies gamma-ray bursts, the most powerful explosions in the universe, as well as other flashes of gamma rays. Gamma-ray...
NASA
NASA | Turning Black Holes into Dark Matter Labs
A new computer simulation tracking dark matter particles in the extreme gravity of a black hole shows that strong, potentially observable gamma-ray light can be produced. Detecting this emission would provide astronomers with a new tool...
NASA
NASA's Fermi Spots 'Fizzled' Burst from Collapsing Star
On Aug. 26, 2020, NASA’s Fermi Gamma-ray Space Telescope detected a pulse of high-energy radiation that turned out to be one for the record books – the shortest gamma-ray burst (GRB) caused by the death of a massive star ever seen. GRBs...
NASA
NASA | Swift's Christmas Burst From Blue Supergiant Star Explosion
Gamma-ray bursts, or GRBs, are the most luminous and mysterious explosions in the universe. The blasts emit surges of gamma rays -- the most powerful form of light -- as well as X-rays, and they produce afterglows that can be observed at...
NASA
NASA | Swift Finds Most Distant Gamma-ray Burst Yet
On April 29, 2009, a five-second-long burst of gamma rays from the constellation Canes Venatici triggered the Burst Alert Telescope on NASA's Swift satellite. As with most gamma-ray bursts, this one -- now designated GRB 090429B --...
NASA
NASA Missions Study Shock Waves in Nova Explosion
Unprecedented observations of a nova outburst in 2018 by a trio of satellites, including NASA’s Fermi and NuSTAR space telescopes, have captured the first direct evidence that most of the explosion’s visible light arose from shock waves...
NASA
Tracing the History of Starlight with NASA's Fermi Mission
Scientists using data from NASA's Fermi Gamma-ray Space Telescope have measured all the starlight produced over 90 percent of the universe's history. The analysis, which examines the gamma-ray output of distant galaxies, estimates the...
NASA
Doomed Neutron Stars Create Blast of Light and Gravitational Waves
Doomed neutron stars whirl toward their demise in this animation. Gravitational waves (pale arcs) bleed away orbital energy, causing the stars to move closer together and merge. As the stars collide, some of the debris blasts away in...
Getty Images
This animation shows a high-energy photon (blue coil) colliding with a free electron (red ball), which causes the release of a gamma-ray (purple flash)
This animation shows a high-energy photon (blue coil) colliding with a free electron (red ball), which causes the release of a gamma-ray (purple flash)
Getty Images
Robert Millikan converses with Carl Anderson
/ Scientist Robert Millikan speaks with assistant Carl Anderson (no audio). Robert Millikan converses with Carl Anderson on January 01, 1940 in Unspecified (Footage by Getty Images)