Alien visitors are here: How rogue comets from another system can contain 'alien material' ALIEN comets and extraterrestrial asteroids from an ancient star passing our solar system could be a source of “alien material’, astrophysicists have shockingly claimed. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:To Map a Coral Reef, Peel Back the SeawaterMeteor STRIKE: 'Biggest ever' 3,280ft space rock hit Britain and it could happen AGAINNASA news: Space agency to allow YOU to stay on ISS by next yearExtrasolar asteroid STRIKE: Alien Oumuamua-like object DID hit Earth in 2014Antarctica shock: Why Al Gore was left ‘surprised’ after scientists dug below iceNutrition for One? Scientists Stalk the Dream of a Personalized Diet