Gamma-ray astronomy is a research area focused on the observation, analysis, and interpretation of the universe in the gamma-ray portion of the electromagnetic spectrum, typically above ~100 keV. It investigates high-energy astrophysical processes such as particle acceleration, non-thermal radiation mechanisms, and nuclear transitions in environments including supernova remnants, pulsars, active galactic nuclei, gamma-ray bursts, and the Galactic Center. The field relies on space-based telescopes and ground-based air-shower or Cherenkov detectors, using techniques such as spectral analysis, timing studies, and imaging to constrain models of cosmic-ray production, magnetohydrodynamic processes, relativistic jets, and potential signatures of dark matter annihilation or decay.
Peering far into the distant, high-redshift universe, the James Webb telescope has discovered an abundance of small red galaxies known as the Little Red Dots. From their observations, astronomers believe that at least some ...
Astronomy
Jun 30, 2026
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Astronomers have reported the discovery of an unusual X-ray transient detected by the Einstein Probe that does not fit any known class of cosmic explosions. The paper presenting its multiwavelength analysis was published ...
There are multiple ways to form black holes. The one most commonly taught in high school physics classes is that they are created from the collapse of a dying star. But there is another class of black holes, known as primordial ...
Astronomy
Jun 22, 2026
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An international research collaboration between the University of Vienna and Lawrence Berkeley National Laboratory in the United States has used machine learning to re-examine one of the most debated signals in astrophysics. ...
Astronomy
Jun 17, 2026
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NASA's "rapid-response" space telescope is slowly falling out of orbit, but a daring mission this summer could allow the Neil Gehrels Swift Observatory to continue scanning the sky for many more years to come. In the first ...
Astronomy
Jun 16, 2026
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An international team of astronomers have employed one of the Large-Sized Telescopes (LSTs) at the Cherenkov Telescope Array Observatory (CTAO) to observe a distant blazar known as OP 313. Results of the observational campaign, ...
Cosmic rays seen at Earth show a wide range of particle energies, from 107 electron-volts (eV) to more than 1020 eV, the latter being about the same as the kinetic energy of a 450 gram football (soccer ball) being kicked ...
LSU researchers helped uncover what may be the first clear detection of gamma rays from a superluminous supernova, using data from NASA's Fermi Gamma-ray Space Telescope—a breakthrough that offers new insight into the powerful ...
Astronomy
May 20, 2026
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Using various telescopes, an international team of astronomers has performed multi-wavelength observations of a recently identified gamma-ray burst source designated GRB 250416C. Results of the observational campaign, published ...
The Large High Altitude Air Shower Observatory (LHAASO) has made a breakthrough in exploring the extreme universe. For the first time, the LHAASO collaboration has detected ultra-high-energy (UHE) gamma rays—with energies ...
Astronomy
Apr 30, 2026
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