A new method to exploit Gamma-Ray Bursts (GRBs), the most energetic explosions in the universe, as independent measurements of the Universe’s expansion rate has been discovered in optical wavelength.

The galaxy M87, located in the Virgo constellation, provided the first-ever photo of a black hole in 2019, when the Event Horizon Telescope captured an image of the supermassive black hole at the ...

Light curve of the gamma-ray flare (bottom) and collection of quasi-simulated images of the M87 jet (top) at various scales obtained in radio and X-ray during the 2018 campaign. The instrument, the ...

In a remarkable discovery, scientists have unraveled the unusual structure of the brightest gamma-ray burst (GRB) ever detected, known as GRB 221009A, or simply "BOAT." The burst, initially observed ...

A massive burst of gamma rays produced by the explosion of a star almost two billion light-years away was so powerful that it changed Earth’s atmosphere, according to scientists. Gamma rays are the ...

Lightning storms produce powerful flashes of gamma rays, and now we may know why, after researchers captured one using cameras across multiple wavelengths. Gamma rays are normally seen coming from ...