Abstract: A spacecraft includes: an ejector that ejects an object being a base of a shooting star at a speed of 120 m/s or more; a direction controller that controls a direction in which the object is ejected; and a position controller that controls a position at which the object is ejected. The ejector sequentially ejects objects at a predetermined time interval. The ejector controls a time interval individually for each of the objects. The spacecraft includes an autonomous controller that autonomously controls the ejector, direction controller, and position controller, to eject the object in a predetermined ejecting direction and at predetermined ejecting position and speed. The autonomous controller controls ejection of the object based on a result of determination on measurement data individually performed by each of arithmetic units.

Abstract: A manufacturing method of a three-dimensional shaped object includes a first step of depositing powder to form a powder layer, and a second step of scanning and irradiating an energy beam to the powder layer to melt and then solidifying the powder layer to form a solidified layer. The energy beam is irradiated to the powder layer corresponding to a contour area and an inner-solid area inside of the contour area. The first and second steps are alternately and repeatedly executed. The energy beam is scanned such that an irradiation starting point of the energy beam for forming an upper solidified layer does not overlap with an irradiation starting point of the energy beam for forming a lower solidified layer in a view from a lamination direction.

Abstract: A flying object includes a housing formed by combining a plurality of panels having reinforced fibers and a matrix resin, and a low melting point member having a lower melting point than that of at least the reinforced fiber, wherein the housing is configured to be breakable according to a change of the low melting point member during either of fusion or sublimation.

Abstract: A method for treating a raw-material powder includes forming a layer of the raw-material powder and removing oxide film formed on a surface of the raw-material powder from which the layer has been formed.

Abstract: A method for treating a raw-material powder includes forming a layer of the raw-material powder and removing oxide film formed on a surface of the raw-material powder from which the layer has been formed.

Abstract: A manufacturing method of a three-dimensional shaped object includes a first step of depositing powder to form a powder layer, and a second step of scanning and irradiating an energy beam to the powder layer to melt and then solidifying the powder layer to form a solidified layer. The energy beam is irradiated to the powder layer corresponding to a contour area and an inner-solid area inside of the contour area. The first and second steps are alternately and repeatedly executed. The energy beam is scanned such that an irradiation starting point of the energy beam for forming an upper solidified layer does not overlap with an irradiation starting point of the energy beam for forming a lower solidified layer in a view from a lamination direction.

Abstract: A method for treating a raw-material powder includes forming a layer of the raw-material powder and removing oxide film formed on a surface of the raw-material powder from which the layer has been formed.

Abstract: A method for producing a powder includes forming a layer of a raw material powder, and performing one of an operation of nitriding the raw material powder of the layer in an atmosphere containing nitrogen or an operation of carbonizing the raw material powder of the layer in an atmosphere containing carbon.

Abstract: An ion beam sputtering film deposition apparatus is provided which can form a high-quality thin film that is dense, smooth and faultless. The film deposition apparatus has ion beam irradiating unit, a target 105 containing a film forming substance to be sputtered, and holding unit 112 to hold a substrate 106 on which the sputtered film forming substance is deposited. The ion beam irradiating unit irradiates gas cluster ions to both the target 105 and the substrate 106.