Glossary of Space




Glossary of Space :


arc - a part of a circle


array - a group of items arranged in rows and columns


atmospheric pressure - the weight of the atmosphere pressing down on the Earth’s surface


cargo bay - a compartment in a space shuttle used during take off for storing devices such as satellites


combustion chamber - the part of a cylinder where the explosion of the air-fuel mixture takes place


diameter - the longest distance from one side of an object to the other passing through the centre


drag - resistance that slows an object down


flyby - a fight at a low altitude over a planet


gravity - the force that attracts oil bodies in the Universe to each other


Houston - the largest city in the state of Texas, USA, where NASA is based


lander - a space vehicle that is designed to land on another planet


lunar module - the section of the Apollo spacecraft designed to land on the Moon


monitor - to record an activity or process


nebulae - clouds of gas and dust in space


nuclear fusion - two atoms coming together and giving off huge amounts of energy


optical telescope - an astronomical telescope designed to collect and record light from cosmic sources


orbit - the path that an object makes around another object whilst under the influence of gravity


orbiter - a spacecraft whose purpose is to orbit around a planet


ozone - a form of oxygen, usually found in the stratosphere, one responsible for flittering out much of the Sun's ultraviolet radiation


ozone hole - a hole in the protective layer of ozone in the upper atmosphere


probe - an unmanned spacecraft which collects information about objects in space and sends it back to scientists on Earth


propel - to push or drive forward


quarantined - the isolation of people or animals for a period of time to ensure they don't spread disease


radiation belt - a region of charged particles trapped in the Earth's magnetic held


reflecting telescope - a telescope which uses a mirror to gather and focus light from a distant object


refracting telescope - a telescope which uses a lens to gather and focus light from a distant object


resolution - the sharpness or clarity of on image


satellite - device that orbits the Earth and can be used for monitoring the weather, communications, etc.


Soviet Union - a former communist country in eastern Europe and northern Asia established in 1922 - included Russia and 14 other republics - this group has split up and no longer exists.


space race - battle between the United States and the Soviet Union for dominance in space exploration


Glossary of Space :







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