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THE START. “We look at the observational evidence for dark matter, from observations of galaxies, galaxy clusters, the anisotropies in the cosmic microwave background radiation and large scale structure.” https://lnkd.in/e6ifiQMn View in LinkedIn

Proton + Neutron. “The subsequent production of the nuclei of the light elements occurs via a chain of reactions: p+n → D, D+p → 3He, D+D → 4He.” https://lnkd.in/e6ifiQMn View in LinkedIn

THE SLANT. “These lecture notes aim to provide an introduction to dark matter from the perspective of astrophysics/cosmology.” https://lnkd.in/e6ifiQMn View in LinkedIn

ORIGIN OF MATTER. “(Big Bang) Nucleosynthesis is the synthesis of the nuclei of the light elements (Deuterium, D, Helium-3, 3He, Helium-4, 4He, and Lithium-7, 7Li) when the Universe was seconds to minutes old.” https://lnkd.in/e6ifiQMn View in LinkedIn

TERRIFIC PRIMER. “Dark Matter in Astrophysics/Cosmology” by Anne M. Green, School of Physics and Astronomy, University of Nottingham. https://lnkd.in/e6ifiQMn View in LinkedIn

“FIGURE 1: Evolution of the log of the density of the universe, ε, with the log of the scale factor, a. The universe starts off radiation dominated (red line), becomes matter dominated (blue) and then at late times is dominated by the cosmological constant (burgundy).” https://lnkd.in/e6ifiQMn View in LinkedIn

DARK MATTER AND DARK ENERGY are the subject of the next section in this blog. This is clearly the elephant in the room of modern astrophysics, since it is so enormous and so unresolved. It is a reminder of how much we are still in the Dark Ages, a backward species. View in LinkedIn

Hubble shot of giant gas and dust clouds that eventually coalesce into stars. https://lnkd.in/eWq3Y_st View in LinkedIn

Hubble shot of Mystic Mountain. https://lnkd.in/eYGpfGVM View in LinkedIn

ALMOST FORGOTTEN. “In the upper reaches of pleasure and on the boundary of fear is a little studied emotion – awe.” https://lnkd.in/ew43YnMu View in LinkedIn