The unmanned commercial supply ‘Antares’ rocket bound for the International Space Station exploded moments after liftoff at 7am on october 29th in Japanese time.Although no deaths or injuries, a cause of this exploded have not made clear yet. This rocket was launched with ‘sigunasu’ which is unmanned space transport ship,and this time was 4 times to carry supplies for International Space Station. Foods and materials for experimentation were packed and weight the total amount of supplies was about 2t. people are attracted to space and there are still many mysterious things. To search these things relating to space, we need a safety rocket.