Although the vehicles had their triumphs servicing the Hubble Space Telescope and assembling the International Space Station, they never came close to living up to the extravagant promise to make spaceflight more efficient and economical, approaching the reliability of aviation.
Proving the viability of its reusable rocket recovery system is extremely important to SpaceX's long-term vision of more affordable, efficient spaceflight.
"We believe reusable rockets will open up a new era of spaceflight, and make access to space more efficient in terms of cost and manifest management.
Mark Sirangelo, then the head of a small space company that later merged with Sierra Nevada Corp., was looking to enter the competition for spaceflight contracts, and decided it would be more efficient to acquire a design that had already been developed instead of starting from scratch.
Turboden is just one of many; the Swedish-based company Climeon, for example, endorsed by spaceflight entrepreneur Richard Branson, uses a similar but different technique to make an efficient heat engine that can be bolted onto anything industrial, from cement plants to steel mills, in order to recycle their waste heat.
These results could offer potentially novel and efficient therapeutic options for attenuating muscle atrophy during aging, illness and spaceflight.
These results support the theory that FGF signaling can play a role in regulation of postnatal skeletal muscle maintenance, and could offer potentially novel and efficient therapeutic options for attenuating muscle atrophy during aging, illness and spaceflight.
A passenger liner based on the Virgin Galactic model of manned spaceflight would allow aircraft to leave earth's atmosphere, which makes travel far more energy-efficient, environmentally friendly and far, far faster.
Judicious placement of efficient shielding materials in locations where crewmembers sleep, rest, or work is an important means for implementing ALARA for spaceflight.
Now, manned spaceflight is banal.
