  Wide angle Hubble Space Telescope (HST/ACS) images of the Helix Planetary
Nebula (NGC 7293) are interpreted using the hydro-gravitational theory (HGT) of
Gibson 1996-2000 that predicts the baryonic dark matter and interstellar medium
(ISM) consists of Mars-mass primordial-fog-particle (PFP) frozen H-He planets.
The new ACS images confirm and extend the O'Dell and Handron 1996 WFPC2 images
showing thousands of cometary globules, which we suggest are cocoons of PFP and
Jupiter frozen-gas-planets evaporated by powerful beamed radiation from the hot
central white dwarf and its companion. The atmosphere mass of the largest
cometary globules is ~ 3x10^{25} kg with spacing ~ 10^{14} m, supporting the
prediction of HGT that the mass density of the ISM in Galaxy star forming
regions should match the large baryonic primordial value at the time of first
structure formation (10^{12} s or 30,000 years), with \rho ~ (3-1)x 10^{-17} kg
m^{-3}.
