Articles tagged "fermi"

fermi bubbles

Galactic bubbles are not a mystery

Sunspots, coronal holes, galactic bubbles and galactic holes (so-called black holes) are magnetic phenomena of space and astrophysical plasma. These phenomena are formed and ruled exclusively by the process of magnetic interactions. They are the sources of high...

December 24, 2019

gamma ray telescopes reveal a high energy trap in our galaxys center

Gamma-ray telescopes reveal a high-energy trap in our galaxy's center

A combined analysis of data from NASA's Fermi Gamma-ray Space Telescope and the High Energy Stereoscopic System (H.E.S.S.), a ground-based observatory in Namibia, suggests the center of our Milky Way contains a "trap" that concentrates some of the...

July 27, 2017

gamma rays from far side solar flares

Fermi sees gamma rays from Sun's far side

Fermi Gamma-ray Space Telescope has observed high-energy light from solar eruptions located on the Sun's far side, which should block direct light from these events. This apparent paradox is providing solar scientists with a unique tool for exploring how charged...

January 31, 2017

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Blazar bonanza

A long time ago in a galaxy half the universe away, a flood of high-energy gamma rays began its journey to Earth. When they arrived in April, NASA's Fermi Gamma-ray Space Telescope caught the outburst, which helped two ground-based gamma-ray observatories detect...

December 15, 2015

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Fermi catches a never before seen 'transformer' neutron star

In late June 2013 astronomers using Fermi Gamma-ray Space Telescope observed an exceptional binary containing a rapidly spinning neutron star which suddenly underwent a dramatic change in behavior. The pulsar's radio beacon vanished, while at the same time the

July 23, 2014

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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 major step toward meeting one of

February 14, 2013

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Earth Gamma-Ray Blasters

From NASA Goddard Space Flight Center. NASA's The Fermi Gamma-ray Space Telescope has been catching brief outbursts of high-energy light that are mysteriously produced above thunderstorms. The outbursts, known as terrestrial gamma-ray flashes (TGFs), last only a few

January 24, 2013

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NASA's Fermi Gamma-ray Space Telescope detected the highest-energy light ever associated with an eruption on the Sun

Solar eruptions are on the rise as the Sun progresses toward the peak of its roughly 11-year-long activity cycle, now expected in mid-2013. Sun produced powerful solar flare rated as X5.4  (based on the peak intensity of its X-rays) on March 7, 2012. During a

June 12, 2012

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Fermi Gamma-Ray Telescope reveals mysteries at the edge of the electromagnetic spectrum

Each type of light, from radio waves to gamma-rays, reveals something unique about the universe and its electromagnetic spectrum. Some wavelengths are best for studying black holes; others reveal newborn stars and planets; while others illuminate the earliest years of

March 17, 2012