Astronomers using the NASA/ESA Hubble Space Telescope have detected helium in the atmosphere of the exoplanet WASP-107b. This is the first time this element has been detected in the atmosphere of a ...
Galactic cosmic rays (GCRs) are energetic particles traveling across the Galaxy as high-energy beams, and are a unique probe to explore the astrophysical particle accelerators and the interstellar ...
MR. FRICKE showed (Phil. Mag. 41, May 1921) that in the extreme ultra-violent the arc spectrum of helium probably contained but one line with a wavelength near 585 Ä.U.
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