The energy spectrum of GCRs is expected to be a power-law form for energies below the “knee” (at 3 − 4 PeV) according to the canonical shock acceleration of particles. However, several experiments ...

On the basis of stellar spectra totalling more than 200 hours of effective exposure time with the 8.2-m VLT Kueyen telescope at Paranal (Chile), a team of astronomers has made a surprising ...

For the first time, and contrary to popular belief, scientists measured the vibrational structure of hydrogen and helium atoms by X-rays. The results disprove the misconception that it’s ...

THE spectra of helium and hydrogen have acquired considerable importance in view of the recent experimental researches of Prof. Fowler and the theoretical investigations of Dr. Bohr. Before the ...

For some time past we have been investigating the cold cathode glow discharge in helium with probe wires, for approximately ‘normal’ conditions at a pressure of about 1 mm. of mercury. The ...

And while simpler spectra like hydrogen and helium, which only have a few lines in their spectra, sound like "vaguely musical" chords, elements with more complex spectra consisting of thousands of ...

Researchers from the Indian Institute of Astrophysics (IIA) have discovered an unexpectedly high abundance of germanium in ...

Discovered in the 1800s in the solar spectrum, helium has been an element that has eluded humans for centuries. Despite being listed as one of the most abundant elements in the universe, this ...