The Need for New Space Travel Systems
NASA is known worldwide for putting people into Earth orbit. The agency is also known as the only organization that has shot humans at escape velocity speeds to the Moon. However, NASA could also be known as an agency that's going nowhere fast (David). Even NASA's chief Sean O'Keefe is eager about the need for speed. "The agency is stuck in slow gear, scooting about in spacecraft today at velocities not much greater than when John Glenn first entered Earth orbit over 40 years ago" (O'Keefe).The horrendously high price to orbit of over 20,000US$ per pound is a bitter indicator for the need of new propulsion systems. Fatal accidents as the Columbia tragedy early last year show the extremely high loads on materials and structures that occur during launch phases with actual propulsion systems and thus the utter need for totally new propulsion concepts. Space flight such as missions to the Moon and Mars and the exploration of deep space require new propulsion technologies that not only reduce travel time, but are cost effective, safe, and have short turnaround periods.The illusion that the Space Shuttle along with its traditional chemical propulsion was a safe enough system to commercially transport people into Earth orbit was trag
The Tether Technology consists of miles and miles of cart-wheeling cable stationed in orbit around the earth. Space travel is still a high-risk science and this reality will only change with a drastic overhaul of the currently used technology. Seventeen years after the Challenger accident yet another tragedy of the same dimensions traumatized both the population and NASA. Spinning quickly around their axis, those wires would pick up lower stationed crafts and sling them into higher orbits passing on their rotational energy. " The most advanced chemical propulsion system constrains the possibilities of space exploration and is an economic burden. The scramjet differs from the ramjet in that combustion takes place at supersonic air velocities through the engine. For orbiters that have already flown, turnaround processing procedures include various post-flight de-servicing and maintenance functions which are carried out in parallel with payload removal and the installation of equipment needed for the next mission. At the pad, vertically integrated payloads are loaded into the payload bay. Finally, the countdown gets underway, launch readiness is confirmed and launch takes place. The seven member of the Challenger crew were all killed in this terrible accident. A Presidential investigation commission composed of 13 members quickly found the mechanical cause of the accident to be the failure of the joint of one of the Solid Rocket Boosters. The Space Shuttle has opened the doors to space travel and exploration. Now is the time of greatest interest in revolutionary propulsion systems. The breach was initiated by a piece of insulating foam that separated from the left bipod ramp of the External Tank and struck the wing in the vicinity of the lower half o Reinforced Carbon-Carbon panel 8 at 81. Built from extremely light and strong composite materials and shaped into huge sails, this propulsion system would only use photons emitted by the sun to produce thrust.
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Acceptance Essays
