IN Prof. Runge's article on the spectra of the elements in last week's issue of NATURE (p. 607) he refers to my explanation of double lines in the spectra of gases (“Cause of Double Lines in ...

Atoms of different elements absorb different wavelengths of light, producing what are called spectral lines. The more atoms of a particular element that exist on the sun’s surface, ...

Atoms of different elements absorb different wavelengths of light, producing what are called spectral lines. The more atoms of a particular element that exist on the sun’s surface, ...

July will see the launch of the groundbreaking Solar EruptioN Integral Field Spectrograph mission, or SNIFS. Delivered to ...