Astronomers have uncovered a discovery that could reshape our understanding of the early Universe. Using the James Webb Space ...

This causes line emission spectra to be produced, as shown below. This is not a continuous spectrum as only light of specific frequencies and specific colours are produced. Different types of ...

Key fact Line emission spectra are unique to a particular element. Different elements produce different line spectra. A line spectrum is like a fingerprint - it can be used to identify the element ...

Astronomers have revealed that "space tornadoes" are swirling around the supermassive black hole at the heart of the Milky Way, Sagittarius A*. The unexpected discovery came via observations of the ...

Superradiant Smith-Purcell radiation (S-SPR) is a kind of free electron radiation with a train of free electron bunches ...

Cosmic rays below 100 MeV are key to the origin of life and the evolution of stars, and they activate interstellar matter to emit spectral emission lines of X-rays and gamma rays specific to the ...

The researchers measured emission lines of N 2 in the droplet (near 430 ... pulses with durations of less than 285 fs, the emission spectra widened dramatically and an extended pedestal formed ...