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Hace 1 día · In gamma-ray astronomy, gamma-ray bursts ( GRBs) are immensely energetic explosions that have been observed in distant galaxies, being the brightest and most extreme explosive events in the entire universe, [1] [2] [3] as NASA describes the bursts as the "most powerful class of explosions in the universe". [4]
Hace 3 días · 1. What are gamma rays? Gamma rays are high-energy electromagnetic waves that have the shortest wavelengths and highest frequencies in the electromagnetic spectrum. 2. How are gamma rays produced? Gamma rays are produced through various processes, such as nuclear reactions, radioactive decay, and high-energy particle interactions. 3.
Hace 2 días · Thermal neutron analysis (TNA) is a sophisticated technique used in the field of archaeology to uncover hidden details about ancient artifacts and structures without causing any damage. This non-destructive method uses thermal neutrons—a type of slow-moving neutron—to analyze the composition and properties of archaeological finds.
Hace 1 día · Male figure in an Assyrian winged sun emblem (Northwest Palace of Nimrud, 9th century BC). Star of Shamash. The star symbol of Shamash with wavy rays used as a symbol of Assyrian people in the Assyrian flag. The solar symbol of Shamash (right) on a kudurru, with the star of Ishtar on the left and a crescent of Sin.
Hace 1 día · Gravitational waves are waves of the intensity of gravity that are generated by the accelerated masses of binary stars and other motions of gravitating masses, and propagate as waves outward from their source at the speed of light.They were first proposed by Oliver Heaviside in 1893 and then later by Henri Poincaré in 1905 as the gravitational equivalent of electromagnetic waves.
Hace 3 días · The DAMPE spacecraft hosts four instruments for the detection of high-energy gamma rays, electrons and other cosmic particles to continue filling in gaps in high-energy astrophysics by deploying the deepest detector to date, enabling the mission to measure the highest energies in the particle universe in the ongoing quest for an ...
Hace 4 días · Cosmic Rays, gamma rays, muons, ultra-energetic particles. Read all the current news and research on cosmic rays. Full-text astronomy articles with images, free.
