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Probes, Telescopes and Satellites

How many Space Probes have been sent out? Five--- Pioneer 10 and 11-- Voyageur 1 and 2-- New Horizons
What are sundials? objects that measure the time according to the shadow from the sun on the dial
What is a refracting telescope? a large area is focused through refracting lenses into a smaller image
What is a reflecting telescope? mirrors are used to reflect the light into a small area.
What was the first satellite launched? Sputnik
Canada was the _______ country to launch a satellite. third
What is a Geostationary Orbit? satellites that don't move.
What does GPS stand for? Global Positioning Satellite
How many satellites are needed to determine your position on earth? 3
Created by: NCCgradenines