Difference between revisions of "Colonising Space/Access to space"
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[[Image:Skylon climbing.jpg|thumb|[http://www.reactionengines.co.uk/skylon.html Skylon] single-stage-to-orbit (SSTO) hybrid air-breathing space-plane capable of carrying 40 tonnes of cargo or 40 passengers to low earth orbit]] | [[Image:Skylon climbing.jpg|thumb|[http://www.reactionengines.co.uk/skylon.html Skylon] single-stage-to-orbit (SSTO) hybrid air-breathing space-plane capable of carrying 40 tonnes of cargo or 40 passengers to low earth orbit]] | ||
| − | We now have access to space using rockets | + | We now have access to space using rockets although this is currently a very expensive way to get into space (over $5000 per pound of material launched<sup>[http://en.wikipedia.org/wiki/Space_elevator_economics#Costs_of_current_systems_.28rockets.29]</sup>) and the failure rate is high. This severely limits what we can do off-Earth; it is the main obstacle to [[Energy|space solar power]] and the colonisation of space. So far, we have only dipped our toes into space, if we want to really dive in we have to make spaceflight cheap and reliable. |
| − | It may be that using abundant solar energy and seawater and [[advanced automation]], mature technologies like liquid oxygen and hydrogen fuelled rockets | + | It may be that using abundant solar energy and seawater and [[advanced automation]], mature rocket technologies like liquid oxygen and hydrogen fuelled rockets actually end up becoming cheap and common-place, likely in conjunction with solid-rocket boosters like the Space Shuttle uses that employ metal fuels and inorganic oxidizers made from [[Material|common elements]]. |
| − | Although many other interesting launch systems are thought to be technically (or at least theoretically) feasible ranging from single stage to orbit hybrid air-breathing space-planes (SSTOs), electromagnetic and balloon platform launch assist to more exotic space fountains, launch loops and geosynchronous space elevators. Information on these alternative launch methods are covered in more detail in this {{wp|Non-rocket_spacelaunch|WP article}}. | + | Although many other interesting launch systems are thought to be technically (or at least theoretically) feasible ranging from single stage to orbit hybrid air-breathing space-planes (SSTOs), electromagnetic and balloon platform launch assist to more exotic space fountains, launch loops and geosynchronous space elevators. It may be that launch strategies that can have their power systems decoupled from the propellant/propulsion systems and installed on the ground may end up being more economical and efficient in terms of energy expended per unit weight lofted into space. |
| + | |||
| + | Information on these alternative launch methods are covered in more detail in this {{wp|Non-rocket_spacelaunch|WP article}}. | ||
Revision as of 21:39, 3 January 2011
We now have access to space using rockets although this is currently a very expensive way to get into space (over $5000 per pound of material launched[1]) and the failure rate is high. This severely limits what we can do off-Earth; it is the main obstacle to space solar power and the colonisation of space. So far, we have only dipped our toes into space, if we want to really dive in we have to make spaceflight cheap and reliable.
It may be that using abundant solar energy and seawater and advanced automation, mature rocket technologies like liquid oxygen and hydrogen fuelled rockets actually end up becoming cheap and common-place, likely in conjunction with solid-rocket boosters like the Space Shuttle uses that employ metal fuels and inorganic oxidizers made from common elements.
Although many other interesting launch systems are thought to be technically (or at least theoretically) feasible ranging from single stage to orbit hybrid air-breathing space-planes (SSTOs), electromagnetic and balloon platform launch assist to more exotic space fountains, launch loops and geosynchronous space elevators. It may be that launch strategies that can have their power systems decoupled from the propellant/propulsion systems and installed on the ground may end up being more economical and efficient in terms of energy expended per unit weight lofted into space.
Information on these alternative launch methods are covered in more detail in this WP article 
.
