Launch Vehicles and Space Transportation Systems

Launch vehicles are an important means of transportation that link Earth and outer space. Launch vehicles put into space communication and weather satellites, which have a direct impact on our quality of life, as well as astronomical-observation satellites and planetary-exploration satellites. Launch vehicles play an essential role in the assembly and supplying of the International Space Station. Currently, Japan has various kinds of launch vehicles to answer diversified launch needs.

In Operation

H-IIB Launch Vehicle


H-IIA Launch Vehicle


H-II Transfer Vehicle
"KOUNOTORI" (HTV)


S-310/S-520/SS-520
(Sounding Rockets)

Under Development

Epsilon Launch Vehicle