Mohamed Usama IsmailGONE WITH THE COMETS?A growing evidence indicates that comets may have played decision roles at major turning points throughout Earth history.4 min read·Feb 27, 2019----
Mohamed Usama IsmailComet Halley Tail TaleIn 1910, Halley’s Comet had once more kept its rendezvous with the Sun. For the previous thirty-eight years, one-half of its orbital…2 min read·Feb 16, 2019----