And the end result?
Among those particles were hydrogen and helium nuclei, collectively called baryons.
Tiny fluctuations in this early ionized plasma caused pressure waves, moving the baryons into a pattern of ripples.
New 3D cosmic map suggests new possibilities for how the universe is expanding
Over the past few years the Dark Energy Spectroscopic Instrument, or DESI – a scientific research instrument for conducting spectrographic astronomical surveys of distant galaxies – has...
