Gauge Newsletter September 2017 | Page 6

Refueling the spaceship from the fuel tanker [Concept Art] Source - www.theverge.com full reusability of the space crafts, the ability to refuel in the orbit, the propellant production on Mars and usage of the right propellant is deemed to drop the cost to USD 200 000, which is the average cost of a house in the United States. The current plan is to host 100 people in the spaceship and eventually expand it up to 200 people. Out of the three fueling options of Kerosene, Hydrogen / Oxygen and Methane, Methane is identified as the feasible option and the propellant depot will produce the required Methane from the surface of Mars. And the spaceship is equipped with an array of solar panels which can produce up to 200kW of energy when deployed. WHAT DID MUSK MISS Even though the hour-long presentation portrayed the feasibility of interplanetary travel, it left out many details which are vital for the success of the whole concept. Musk himself said “Are you prepared to die? If that’s okay, then you’re a candidate for the journey”, about the first person who will be making this leap of faith. Hence comes to light the obstacles which are in its way for initiating this huge venture. The solar radiation is one of the biggest issues with the inter- planetary travel. Even though Musk neglected this as a small issue which will not cause a significant impact, people are questioning the possibility of causing cancer and other health issues with the expo- sure. Further, the plans for the survival on the red planet, with food, health and other life support would be a challenge of its own and ini- Falcon 9 Lift off Source -www.spacex.com tiating and research into these areas would cost far more than the transportation sys- tem itself. To protect the inhabitants, Musk suggested a magnetic force field to deflect high-energy particles and the solar radia- tion. However, further details of this system were not provided and they left a doubt in minds of the interested parties. Spaceship after Deploying the Solar Panel Array [Concept Art] Source - www.theverge.com 6 University of Peradeniya Gauge Magazine The spaceship which is expected to be called “Heart of Gold”, was inspired by Hitchhikers Guide to the Galaxy, and it is deemed to adhere to the planetary pro- tection rules enforced by NASA to keep the interplanetary contaminations at bay. However, populating Mars alone will break this rule, which raises many more questions.