Share with friends and circles of friends with wechat scanning QR code < / P > < p > on September 7, aerospace technology company dawn aerospace is developing a new spaceship, which can go to space several times a day < p > < / P > < p > last month, dawn Aerospace conducted five unmanned flight tests on its prototype mk-ii Aurora suborbital vehicle. The Mk II prototype is 4.8m long and weighs 75kg. It completed five test flights over glentena airport on the South Island of New Zealand at an altitude of about 1036 meters. The company evaluated the fuselage design and onboard avionics, and it is expected to enter low earth orbit in 2022 < p > dawn aerospace is also developing a rocket engine, which will be used for the mk-ii prototype early next year, allowing it to take off from the traditional runway, reach low earth orbit, return to the runway and land, and then repeat the whole process. If necessary, this flight process can be carried out several times in the same day. Like Virgin Galactic and blue origin, space tourism may become an important part of the distant future of dawn aerospace < p > Stefan Powell, CEO of the company, said, "mk-ii can also collect atmospheric data for climate modeling and conduct scientific research and technical demonstration." Powell stressed that this is not the ultimate goal“ Mk-ii is only a technical demonstration of the two-stage to orbit vehicle mk-iii. " < p > dawn Aerospace plans to develop mk-iii in a few years. It can carry a payload of 250 kg, so it has the ability to send satellites, goods and even astronauts into space. Like mk-ii, mk-iii can complete several flights in a day. The size and reusability of the spacecraft will effectively reduce costs and reduce carbon emissions < p > Powell said: "the aerospace industry relies heavily on one-time flight or partially refurbished equipment within weeks or months."“ Many launch companies are pursuing lower and lower mass production costs rather than saving money through full reuse. " For example, Powell said, "if your car can only be used once or several times before treatment, it is difficult to be considered sustainable or economical."“ Our team's view is that when the production of launch hardware produces most of the carbon emissions, it can no longer be discarded at will. On the contrary, we hope to apply the high reusability of aircraft to the aerospace industry. "（ Chen Chen) < / P > < p >