Orbiting solar power stations have been a continuous source of debate for decades – someone always brings up the idea of power plants IN SPACE and it always gets shot down as being unfeasible. (What’s not realistic about having energy beamed down from space? Come on.) But because Star Trek has been part of our collective consciousness for the past 50 years (or maybe it’s just me), someone always goes back to the idea of space lasers providing clean energy. (more…)
The sun’s abundant energy, if harvested in space, could provide a cost-effective way to meet global power needs in as little as 30 years with seed money from governments, according to a study by an international scientific group.
Orbiting power plants capable of collecting solar energy and beaming it to Earth appear “technically feasible” within a decade or two based on technologies now in the laboratory, a study group of the Paris-headquartered International Academy of Astronautics said.
Such a project may be able to achieve economic viability in 30 years or less, it said, without laying out a road map or proposing a specific architecture.
Pssst, do you wanna buy a satellite? No, really – do you? Well, Zac Manchester would like to sell you one. Not only that, but he claims that the thing could be built and launched into orbit for just a few hundred dollars. For that price, however, you’re not going to be getting a big satellite. Manchester’s Sprite spacecraft are actually about the size of a couple of postage stamps, but they have tiny versions of all the basic equipment that the big ones have.
Zac is a graduate student in Aerospace Engineering at Cornell University, and was part of the team that originally designed the Sprites for use as space probes – the idea being that they could travel on solar winds, like cosmic dust, traveling deep into space without the need for fuel. Three of the one-square-inch spacecraft were delivered to the International Space Station this May, to see how they how well they could stand up to the rigors of outer space. They are currently still mounted on the outside of the station, and are due to be brought back to Earth in a couple of years.
Follow