Caption: An emission spectrum captured by NIRSpec (the Near-Infrared Spectrograph) on NASA’s James Webb Space Telescope in ...

A sudden X-ray flare from a supermassive black hole in galaxy NGC 3783 triggered ultra-fast winds racing outward at a fifth the speed of light—an event never witnessed before. Using XMM-Newton and ...

Berkeley and elsewhere have performed spectroscopic and photometric study of a peculiar supernova designated SN 2021ukt, ...

Using NASA's Swift and Fermi space telescopes, Indian astronomers have conducted a long-term multiwavelength study of a ...

The agency plans to argue that carbon emissions from power plants do not contribute “significantly” to climate change. Scientists disagree. By Lisa Friedman The Environmental Protection Agency has ...

Abstract: The emission spectrum of plasma discharges encapsulates abundant physical information, reflecting critical plasma parameters such as reactive groups, gas temperature, and electron density.

Scientists have been all aflutter since several space-based detectors picked up a powerful gamma-ray burst (GRB) in October 2022—a burst so energetic that astronomers nicknamed it the BOAT (Brightest ...

Transitions between different electronic energy levels in elements occur at unique energies and intensities, giving each element a distinctive emission spectrum. When the energy of an incident photon ...

Spectroscopy harnesses the quantum properties of atoms, where electrons orbit nuclei at discrete energy levels. The electrons jump between these levels by absorbing or emitting photons, leading to the ...

1 Department of Geology and Environmental Science, University of Pittsburgh, Pittsburgh, PA, United States 2 Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States ...

Impact Statement: In our work we unravel the carrier transport in the active region of a mixed quantum well deep ultraviolet light emitting diode by modelling the emission spectra with numerical ...