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From the gigantic Hubble to the tiny MOST, space telescopes and space astronomy open a window onto unimaginably violent phenomena, objects of great beauty and a universe that is expanding at an ever-increasing rate toward an unknown destiny.

Learn the basics of astronomy

Comet, meteor or meteorite?

From Comet to Meteorite! - Illustration

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2015-08-12 - Illustration providing an overview of the characteristics of comets, asteroids, meteoroids, meteors, fireballs and meteorites. (Credit: Canadian Space Agency)