WASHINGTON:-  A colossal aircraft capable of launching satellite-toting rockets into space is closer to testing, having been rolled out of a hangar in the desert, its creators said on Wednesday. The project backed by billionaire Microsoft co-founder Paul Allen has been proceeding for about six years and was on track for its first launch demonstration as early as 2019, Stratolaunch Systems Corporation chief executive Jean Floyd said in a blog post. “This marks a historic step in our work to achieve Paul G. Allen’s vision of normalizing access to low Earth orbit,” Floyd said. “This is a first-of-its-kind aircraft, so we’re going to be diligent throughout testing.”–AFP

 In the weeks and months ahead, Stratolaunch - touted as the biggest airliner ever built - will be testing fuel systems, engines and more on the ground at its air and space port in the Mojave desert, according to Floyd.