In our return to space, here are four ways we can do so sustainably.
ISEC further suggests that space elevators will allow us to mobilize solar power and solar shade to improve Earth's environment, dispose of nuclear waste in space and travel to Mars in 61 days. The Japanese company Obayashi plans toMeanwhile, NASA is developing a solar-sail concept that can harness sunlight similar to the way sailboats harness wind.
convert light into energy, just as photovoltaic cells do in solar panels. Theoretically, this technology could send a spacecraft across our solar system using only sunlight as fuel.is studying the project's viability, which the agency says dramatically could reduce the need for spacecraft to carry heavy, expensive and potentially toxic fuels.Past lunar missions required astronauts to bring a lot of luggage from Earth.
In-situ refers to using local resources. The Moon and Mars, for example, are covered in a powdered rock called regolith. This residue of planetary evolution might contain oxygen, water and methane: All resources that we can use to power equipment and build bases. The European Space Agency has awarded a company called Space Applications Services, a contract to develop devices that
. Such a station on the Moon would require spacecraft to carry less oxygen from Earth and could serve as a"refueling" stop on the way to Mars.
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