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Technology Development

Satellite Design


2012 – Other Technology Efforts

Long-duration space missions beyond Earth’s orbit are not always able to rely on solar panels, so they often require a more compact and powerful source of energy. Radioisotope thermoelectric generators (RTGs) were developed to provide this power source. RTGs generate electric power from the heat produced by the natural decay of small amounts of radioactive material, typically plutonium-238 isotopes.

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2012 – On-Orbit Servicing

Much of the world depends on GEO satellites for defense, communication, science, and weather monitoring. These expensive assets eventually fail or run out of propellant, but refueling and maintaining them can extend their lives, giving their users more value. Servicing can also help make space more sustainable because broken and drifting satellites take up valuable real estate in GEO and pose a risk to neighboring systems.

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Infrastructure: Space Infrastructure – TSR 2012

Infrastructure: Space Infrastructure - TSR 2012 examines global human spaceflight operations to include the Chinese, and the US space stations, launch vehicles from all spacefaring nations, communications satellite constellations, PNT…

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2011 – Other Technology Efforts Snapshot

There is a wide range of technology development in the public and private sectors related to space infrastructure. One of the largest efforts is within NASA’s Office of the Chief Technologist (OCT), an office created by NASA in 2010 to centralize and coordinate the agency’s technology development efforts.

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2011 – On-Orbit Servicing Snapshot

Once launched, satellites generally cannot be refueled or repaired. Satellites have lifetimes limited by the amount of propellant they can carry on board to maintain their orbits. A failure of a key system on a satellite can partially or totally disable the spacecraft, causing a disruption in service and potentially creating a hazard for other satellites.

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Infrastructure: Space Infrastructure – TSR 2011

Infrastructure: Space Infrastructure - TSR 2011 examines global human spaceflight operations to include both the Chinese and US space stations, launch vehicles from all spacefaring nations, communications satellite constellations, PNT…

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2010 – In-Space Activities – Snapshot

In-space activities include research and development services, manufacturing, satellite refueling, and orbital debris clean-up. NASA’s Commercial Reusable Suborbital Research Program (CRuSR) is helping fund development of vehicles capable of carrying payloads on brief trips into space.

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