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Virgin Galactic may attempt a major test flight of its novel SpaceShipTwo on Monday (April 29).
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The world needs to get serious about removing debris from orbit.
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Technicians make adjustments on the solar-powered, remotely piloted craft before its record-setting flight.
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Planetary Resources hopes to loft a set of cubesats to Earth orbit by this time next year.
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A technician focuses a television camera on a ramjet engine in a wind tunnel.
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