The W M Keck Observatory
Spectra from the W M Keck Observatory on the summit of Mauna Kea, Hawaii, have provided evidence that α was slightly smaller in the early universe. (NASA/JPL.)
International Journal of High-Energy Physics
Spectra from the W M Keck Observatory on the summit of Mauna Kea, Hawaii, have provided evidence that α was slightly smaller in the early universe. (NASA/JPL.)