The head of the company SpaceX Elon Musk in Twitter has criticized created under the leadership of Boeing on behalf of NASA super-heavy rocket Space Launch System (SLS), designed to fly in deep space, particularly the moon and Mars.

“The main problem with SLS is that it is not reusable. This means that the rocket price of a billion dollars are destroyed in each run. Absolute tragedy,” wrote an American businessman and engineer. The first launch of the us SLS, which is almost ready, is scheduled for 2021. The cost of the missile is estimated at $ 1.6 billion. The first launch of the Russian “Enisey”, the creation of which is under design, is planned for 2028.