closely held private firm that makes small rocket engines and rocket systems. How small? Small enough to fit in a backpack: Estes is a storied company dating back to the 1950s, known for its model ...

Rocket technology predates space exploration ... which use an electric charge to accelerate ions out of the engine. This produces a small but continuous thrust that can get a probe moving quite ...

7 (UPI) --The Toyota Motor Corporation will invest $44.4 million ... Toyota's space partner Interstellar Technologies is developing a small rocket capable of launching satellites into orbit.