LAURA KNIGHT-JADCZYK AND JOE QUINN
Since the 9/11 attacks, no book has provided a satisfactory answer as to WHY the attacks occurred and who was ultimately responsible for carrying them out - until now.
Comment: If comets are "dirty snowballs", why are they finding comets to be "dark dusty crust"?. May be Electrical comet theorists are correct in claiming that comets are not "dirty snowballs".Thermal readings were taken by the unmanned spacecraft Rosetta as it neared Comet 67P/Churyumov-Gerasimenko on the final leg of a six-billion-kilometer (3.75-billion-mile), 10-year pursuit.
Earth itself is about 4.5 billion years ago, but it's rare to find rocks older than those formed about 3.8 billion years ago. One reason older rocks may be missing is that they were destroyed when asteroids and comets pummeled the Earth, moon and inner planets of the solar system, scientists report today (July 30) in the journal Nature.
"The surface of the Earth was heavily affected by all these collisions," said lead study author Simone Marchi, a planetary scientist with the Southwest Research Institute in Boulder, Colorado. "There's no doubt the crust was excavated, mixed and buried as a result of this bombardment." [Photo Timeline: How the Earth Formed]