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... Interplanetary Society for Volume 59 59 '''Page ''' - 108-111 '''Year''' - 2006 '''Keywords''' - Solar sails propulsion, orbital mechanics, communications, beamed power, control systems '''JBIS Reference Code ''' - 2006.59.108 '''Number of Pages''' - 4 Abstract The time needed for solar sails to escape Earth orbit can be greatly reduced with the aid of electromagnetic beams from photon generators (beamers). However ...

... '''Number of Pages''' - 9 Abstract Next-generation space exploration will most likely require the on-orbit assembly of large spacecraft. In order for any such exploration program to be sustainable, it ... , and in-space refuelling are modelled and compared in terms of mass-to-orbit requirements for various on-orbit assembly tasks. Results show that reusable space tugs with in-space refuelling can ...

... Interplanetary Society for Volume 61 61 '''Page ''' - 203-212 '''Year''' - 2008 '''Keywords''' - On-Orbit Servicing, life extension, orbital replacement unit, satellite industry, telecommunications, economics '''JBIS Reference Code ''' - 2008.61.203 '''Number of Pages''' - 10 Abstract On-Orbit Servicing has the potential to completely reshape the satellite industry, but for the technology to ...

... Interplanetary Society for Volume 61 61 '''Page ''' - 213-223 '''Year''' - 2008 '''Keywords''' - On-Orbit Servicing, lifetime extension, orbital replacement unit, architecture design, robotics '''JBIS Reference Code ''' - 2008.61.213 '''Number of Pages ... increasingly important. This paper proposes a system architecture design for an Orbital Replacement Unit (ORU) exchange service mission in Geostationary Orbit (GEO). It describes in detail the mission and spacecraft design, thereby ...

... ID = 1995-048B Webpage = Semimajor_Axis = Eccentricity = Inclination = Orbital_Period = Apoapsis = Periapsis = Orbits = Alternate Names = Spartan 201-03, 23668 Experiments = Nominal ... gsfc.nasa.gov/nmc/experimentSearch.do?spacecraft=Spartan%20201-3 Here Telecommunications Information = http:// ...

... MEDIA ADVISORY: 11-159 NASA ANNOUNCES NEWS BRIEFING ON MARS ORBITER SCIENCE FINDING Science Journal Has Embargoed Details Until 2 p.m. EDT on Aug. 4'' ... Washington. The new finding is based on observations from NASA's Mars Reconnaissance Orbiter (MRO), which has been orbiting the Red Planet since 2006. MRO is managed by the Jet Propulsion Laboratory ...

... Earth orbit. Designed for crew or cargo missions, the heavy-lift will be safe, affordable and sustainable, and help NASA explore deep space. The J-2X test is scheduled for approximately 3 ... is completed. Typically, millisecond pulsars are around a billion years old. However, in the Nov. 3 issue of Science, the Fermi team reveals a bright, energetic millisecond pulsar only 25 million ... collection of ancient stars called a globular cluster, one of about 160 similar objects that orbit our galaxy. The cluster is about 10 billion years old and lies about 27,000 ...

... commercial crew transportation capabilities that could ferry U.S. astronauts to and from low-Earth orbit (LEO) and the International Space Station. A helicopter lifted the CST-100 crew capsule ... , Del., designed and fabricated the landing air bag system. The first test, on April 3, validated the architecture and deployment of the parachute system, characterized pyrotechnic shock loads, confirmed ...

... the atmosphere, so there is very little resistance to their motion. They are launched into orbit horizontally at speeds of at least 17,500 miles per hour (mph) but remain under ... of atmosphere which will eventually cause a satellite's orbit to drop lower. Beyond this low orbit regime, a satellite can remain in orbit forever. ---- Answer provided by Derek Webber Image:K2S logosmall ...

... about 250,000 in the SMC. The images include light ranging from 1,600 to 3,300 angstroms, which is a range of UV wavelengths largely blocked by Earth's atmosphere ... SMC lie about 163,000 light-years and 200,000 light-years away, respectively, and orbit each other as well as our own Milky Way galaxy. The LMC is about one ... operated in collaboration with Penn State, the Los Alamos National Laboratory in New Mexico and Orbital Sciences Corp. in Dulles, Va. International collaborators are in the United Kingdom and Italy, and ...

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