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Lightning research comes down to earth

August 8, 2019

For several decades it has been known that gamma-ray flashes can accompany lightning strikes in thunderstorms. These observations…
Thunderbolt of lightning, gamma rays exciting

June 26, 2019

University of Tokyo graduate student Yuuki Wada with colleagues from Japan discover a connection between lightning strikes and…
Fastest supernova ever seen reveals earliest moments of a dying star

January 21, 2019

An international team of scientists, including astronomers from the Universities of Bath, Leicester and Warwick, have found evidence…
Next Step for GRETA: Better Gamma-Ray Detector

November 7, 2018

Instrument will provide a more sensitive gauge of nuclear structure, processes. A new high-resolution gamma-ray detector system – designed…
Mountain – top observatory sees Gamma rays from exotic Milky Way object

October 8, 2018

The night sky seems serene, but telescopes tell us that the universe is filled with collisions and explosions.…
Ghost objects in the sky

October 5, 2018

Astronomers typically study objects that are visible night after night or explode suddenly, like supernovas, but Casey Law…
Veritas supplies critical piece to neutrino discovery puzzle

July 17, 2018

The VERITAS array has confirmed the detection of high-energy gamma rays from the vicinity of a supermassive black…
Study reveals electron accelerator in thundercloud was destroyed by lightning

July 16, 2018

An international research group including University of Tokyo researchers revealed that the electron-acceleration mechanism inside a thundercloud was…
Telescope Array: A bolt of insight

May 23, 2018

In the western Utah desert, the Telescope Array sprawls across an area the size of New York City,…
Neutrons by the Numbers

May 22, 2018

New counting technique delivers unprecedented accuracy. After years of research, scientists at the National Institute of Standards and…
Prototype camera set for integration into novel gamma-ray telescope

May 8, 2018

A unique high-speed camera, designed to capture the fleeting effects of gamma rays crashing into the Earth’s atmosphere,…
NASA’s Rossi X-ray Timing Explorer Leaves Scientific ‘Treasure Trove’

May 5, 2018

NASA’s decommissioned Rossi X-ray Timing Explorer (RXTE) satellite re-entered Earth’s atmosphere on April 30. Orbiting for more than…
Neutron-star merger yields new puzzle for astrophysicists

January 19, 2018

The afterglow from the distant neutron-star merger detected last August has continued to brighten – much to the surprise of…
Physicists Have Created an Artificial Gamma Ray Burst in the Lab

January 19, 2018

On July 2nd, 1967, the U.S. Vela 3 and 4 satellites noticed something rather perplexing. Originally designed to…
Catch a Fleeting Kilonova

October 17, 2017

In the world of astrophysics, Aug. 17, 2017, was undoubtedly a red-letter day. First, NASA’s orbiting Fermi satellite…
New instrument will explore asteroid Psyche

June 17, 2017

In a few years, an instrument designed and built by Lawrence Livermore National Laboratory (LLNL) researchers will be…
NASA’s Fermi Catches Gamma-ray Flashes from Tropical Storms

April 25, 2017

About a thousand times a day, thunderstorms fire off fleeting bursts of some of the highest-energy light naturally…
This Week in NASA History: Compton Gamma Ray Observatory Launches – April 5, 1991

April 6, 2017

This week in 1991, space shuttle Atlantis and STS-37 launched from NASA’s Kennedy Space Center. The primary mission…
NASA’s Fermi Sees Gamma Rays from ‘Hidden’ Solar Flares

February 1, 2017

An international science team says NASA’s Fermi Gamma-ray Space Telescope has observed high-energy light from solar eruptions located…
HAWC Gamma-Ray Observatory Reveals New Look at the Very-high-energy Sky

April 21, 2016

The United States and Mexico constructed the High Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory to observe some of…
Galactic center’s gamma rays unlikely to originate from dark matter, evidence shows

February 5, 2016

Bursts of gamma rays from the center of our galaxy are not likely to be signals of dark…
NASA-Funded Balloon Launches to Study Sun

January 20, 2016

the GRIPS balloon team sent their instrument soaring towards the stratosphere above Antarctica, suspended underneath a helium-filled, football-field…
Gamma rays from distant galaxy tell story of an escape

December 24, 2015

A flare of very high-energy gamma rays emitted from a galaxy halfway across the universe has put new…
Researchers develop a new mathematical tool for analyzing and evaluating nuclear material

December 22, 2015

Lawrence Livermore National Laboratory scientists have created a new method for detecting and analyzing fission chains to assess…
Missing link between turbulence in collapsing star, hypernovae and gamma-ray bursts

December 1, 2015

A supercomputer simulation of a mere 10 milliseconds in the collapse of a massive star into a neutron…
NASA’s Fermi Satellite Detects First Gamma-ray Pulsar in Another Galaxy

November 13, 2015

Researchers using NASA’s Fermi Gamma-ray Space Telescope have discovered the first gamma-ray pulsar in a galaxy other than…
NASA’s SWIFT Spots its Thousandth Gamma-ray Burst

November 9, 2015

NASA’s Swift spacecraft has detected its 1,000th gamma-ray burst (GRB). GRBs are the most powerful explosions in the…
Workhorse gamma ray generator HERMES III fires its 10,000th shot at Sandia Labs

September 9, 2015

ALBUQUERQUE, N.M. — The High-Energy Radiation Megavolt Electron Source, better known as HERMES III, has fired its 10,000th…
5 billion light years across: the largest feature in the universe

August 5, 2015

A Hungarian-US team of astronomers have found what appears to be the largest feature in the observable universe:…
Astronomers use cosmic gravity to create a ‘black-hole-scope’

July 7, 2015

The Integral, Fermi and Swift space observatories have used the magnifying power of a cosmic lens to explore…
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