Topic > The Challenges of Interstellar Space Travel - 691

Introduction The idea of ​​interstellar space travel has been discussed for many years by many scientists and engineers since the 1950s (Adelman, 180). It has not only been discussed but also demonstrated in science fiction literature. Gaining knowledge of interstellar travel, people wonder when we will be able to travel between the stars and whether it will be possible to reach another star other than the sun. However, others ask "what's the point of spending so much money on something that isn't possible?" or “why do we need to study another star when we have the sun brightening our days?” The answers to these two questions are; one day our sun will become a red giant and end the life of the earth and the second reason why a nearby supernova can affect our solar system (Mallove, pg. 4). To escape these tragedies we must find a way to be transported to another star. Dr. Leslie Robert Shepherd, nuclear physicist and member of the British Interplanetary Society, first published an article on “Interstellar Flight” in 1952. Thereafter the British Interplanetary Society continued research on “Interstellar Space Travel” throughout his story (The Telegraph, 2012). Our research question is: “Can we ever reach other stars besides the Sun?” This article will explain the challenges of interstellar flight, the ways of traveling in space and finally the projects that emerged during the years of research. The Challenges of Starflight Interstellar space travel is very difficult to achieve. There are many challenges to overcome to be successful. The first challenge of interstellar space travel would be distance (Mallove,5). The closest star is Proxima Centauri which is 4.3 light years away or approximately 4.0681×〖10〗^13 km from Earth. It would… middle of paper… overcome the limitations of rockets using chemical energy (Mallove, 49). This type of rocket is used by heating fuel with a nuclear reactor to provide thrust, in other words a propellant mass (Tate, 2013). Ion thrust and plasma thrust are very similar: they work by electrically accelerating ions or plasma to provide thrust. The speed of the rocket is slow but it would last much longer than chemical nuclear rockets (Tate, 2013). Anti-matter rockets were proposed in the early 1950s by a German scientist, Eugen Sanger. This rocket would have a speed of about 3×〖10〗^7 m/s. It would produce “energetic gamma rays” that travel at the speed of light (Mallove, 49). The main problem with these rockets is fuel. It needs a huge amount of fuel, greater than the earth could produce. For example, Nuclear fusion rockets would need about “1000 supertankers full of fuel”