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发表于 2016-7-12 13:36:03
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In regard to a concept for a space hotel initially planned by Space Island, such a hotel could offer guests every convenience they might find at a hotel on Earth, and some they might not, The small gravitational pull created by the rotating space city would allow space-tourists and residents to walk around and function normally within the structure. Everything from running water to a recycling plant to medical facilities would be possible. Additionally, space tourists would even be able to take space walks.
Many of these companies believe that they have to offer an extremely enjoyable experience in order for passengers to pay thousands, if not millions, of dollars to ride into space. So will space create another separation between the haves and have-nots?
The Most Expensive Vacation
Will space be an exotic retreat reserved for only the wealthy? Or will middle-class folks have a chance to take their families to space? Make no mistake about it, going to space will be the most expensive vacation you ever take. Prices right now are in the tens of millions of dollars. Currently, the only vehicles that can take you into space are the space shuttle and the Russian Soyuz, both of which are terribly inefficient. Each spacecraft requires millions of pounds of fuel to take off into space, which makes them expensive to launch. One pound of payload(有效载重) $10,000 to put into Earth’s orbit.
NASA and Lockheed Martin are currently developing a single-stage-to-orbit launch space plane, called the VentureStar, that could be launched for about a tenth of what the space shuttle costs to launch. If the VentureStar takes off, the number of people who could afford to take a trip into space would move into the millions.
In 1998, a joint report from NASA and the Space Transportation Association stated that improvements in technology could push fares for space travel as low as $50,000, and possibly down to $20,000 or $10,000 a decade later. The report concluded that at a ticket price of $50,000, there could be 500,000 passengers flying into space each year. While still leaving out many people, these prices would open up space to a tremendous amount of traffic.
Since the beginning of the space rece, the general public has said, “Isn’t that great—when do I get to go?” Well, our chance might be closer than ever. Within the next 20 Years, space planes could be taking off for the Moon at the same frequency as airplanes flying between New York and Los Angeles.
注意:此部分试题请在答题卡1上作答。
1. Lance Bass wasn’t able to go on a tour of space because of health problems.
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