<p>In part two of the eerie Halloween special, "explore: Witchcraft and Space," join filmmaker and philanthropist Charles Annenberg Weingarten and the explore Team on their visit to Charlie’s hometown, Roswell, New Mexico, the site of what some call the largest government cover-up of the past century: the Roswell UFO crash of 1947. Then, meet the children of Marsh Fork Elementary in Sundial, West Virginia, where the very coal mining that supports the community also threatens the local students. And, get a glimpse of where astronomers go to peer into the heavens, at the Keck Observatory atop a dormant volcano in Hawaii.</p><p><a href=" here for part one</a> of "explore: Witchcraft and Space", where Charlie goes to Salem, Massachusetts, to uncover the bizarre origins, innocent victims and final resolution of the infamous Salem Witch Hunt.</p><p>Learn more at <a href=" target="_blank">www.explore.org</a>.</p>