Continuous evolution of Fermi arcs and the achieved electromagnetic pulling force. a, Schematic showing how Fermi arcs can be adjusted by varying the thickness of an air layer sandwiched between two ...

This artist's concept shows the entire sky in gamma rays with magenta circles illustrating the uncertainty in the direction from which more high-energy gamma rays than average seem to be arriving. In ...

A nearby supernova in 2023 offered astrophysicists an excellent opportunity to test ideas about how these types of explosions boost particles, called cosmic rays, to near light-speed. But surprisingly ...

What is a Fermi Liquid? A Fermi liquid is a theoretical model that describes the behavior of interacting electrons in metals and other condensed matter systems at low temperatures. It is based on the ...

"Fermi is the most sensitive gamma-ray telescope in orbit, so when it doesn’t detect an expected signal, scientists must explain the absence." When you purchase through links on our site, we may earn ...

NASA’s Hubble Space Telescope captured this view of spiral galaxy Messier 101, also known as the Pinwheel galaxy. The location of supernova 2023ixf is circled. On May 18, 2023, a supernova erupted in ...

NASA’s Fermi Gamma-ray Space Telescope has discovered a faint but sprawling glow of high-energy light around a nearby pulsar. If visible to the human eye, this gamma-ray “halo” would appear about 40 ...

Nearby galaxies undergoing a furious pace of star formation also emit lots of gamma rays, say astronomers using NASA’s Fermi Gamma-ray Space Telescope. Two so-called “starburst” galaxies, plus a ...