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…
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…
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…
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…
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
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
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
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
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
