4.5 billion years ago, Earth experienced a cataclysmic rendezvous with a planet named Theia. Evidence of the impact is still buried deep within the Earth.
TUCSON, Ariz. (KVOA) – As part of the Arizona International Film Festival, a documentary about a University of Arizona Ph.D. astrophysics candidate gets an encore screening.
University of Arizona students are behind CatSat, a cereal box-sized satellite that will probe the ionosphere and beam data to Earth with an inflatable antenna.
Authors – Popular Archeology popular-archaeology.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from popular-archaeology.com Daily Mail and Mail on Sunday newspapers.