Chemical rockets are ponderous. The space shuttle, for instance, carries more than 3.8 million pounds of expensive propellant—even empty, its two solid boosters weigh 193,000 pounds apiece. Oleg Batishchev, principal research scientist at MIT’s Department of Aeronautics and Astronautics, appreciates such rockets for their raw, Earth-escaping punch. But once a craft hits orbit, he says, his new invention makes more sense: The Mini-Helicon Plasma Thruster is designed to be a lighter, cheaper way to move through space.
Read More
No comments:
Post a Comment