  Hydrogravitional-dynamics (HGD) cosmology of Gibson/Schild 1996 predicts
proto-globular-star-cluster PGC clumps of Earth-mass planets fragmented from
plasma at ~0.3 Myr. Protogalaxies retained the ~0.03 Myr baryonic density
existing at the time of the first viscous-gravitational plasma fragmentation.
Stars promptly formed from mergers of these gas planets, seeded by chemicals C,
N, O, Fe etc. created by the first stars and their supernovae at ~ 0.33 Myr.
Hot hydrogen gas planets reduced seeded oxides to hot water oceans over
metal-rock cores at water critical temperature 647 K, at ~2 Myr. Merging
planets and moons hosted the first organic chemistry and the first life,
distributed to the 10^80 planets of the cosmological big bang by comets
produced by the (HGD) binary-planet-merger star formation mechanism: the
biological big bang. Life distributed by the Hoyle/Wickramasinghe
cometary-panspermia mechanism thus evolves in a cosmological primordial soup of
the merging planets throughout the universe space-time. A primordial
astrophysical origin is provided for astrobiology by planets of HGD cosmology.
Concordance {\Lambda}CDMHC cosmology is rendered obsolete by the observation of
complex life on Earth, falsifying the dark energy and cold dark matter
concepts. The dark matter of galaxies is mostly primordial planets in
protoglobularstarcluster clumps, 30,000,000 planets per star (not 8!). Complex
organic chemicals observed in the interstellar dust is formed by life on these
planets, and distributed by their comets.
