TOKYO -- Japan's successful liftoff of a more price-competitive rocket Friday carries the country into a new stage of private-sector space development, an industry that has remained mostly grounded due to prohibitive costs.
Epsilon-4 vehicle provides less costly tech to show future customers

The Epsilon-4 rocket takes off from the Uchinoura Space Center in Kagoshima Prefecture, in southern Japan. (Photo by Masamichi Hoshi)
TOKYO -- Japan's successful liftoff of a more price-competitive rocket Friday carries the country into a new stage of private-sector space development, an industry that has remained mostly grounded due to prohibitive costs.