Top-Secret US Space Drone Returns to Earth Experts say the highly classified plane—which returns to Earth today—could be testing spacecraft longevity or developing anti-satellite weapons. — For more information read the original article here. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window) Related Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.