The life cycle and death of stars form the ingredients that make up Earth, making stars critical to life as we know it.

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Scientists have found thousands of planets that orbit other stars, just like Earth orbits the Sun. Some of them might even be able to support life.

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Meet Catherine and learn about the cool things she does on a daily basis at the Algonquin Radio Observatory. (2:14 min.)

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A landmark day for Einstein and our understanding of the universe: the detection of gravitational waves. Brian Greene explains the discovery. (3:10 min.)

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After a decades-long quest, The MIT-Caltech collaboration LIGO Laboratories has detected gravitational waves, opening a new era in our exploration of the universe. (5:26 min.)

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res-backgrounder 

This backgrounder helps explain the laws of Orbital Mechanics

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What's a black hole and what's the big deal about them? Learn about our amazing universe and its "darkest" secrets in this video.

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Black holes are regions in space resulting from stars that have "died" and collapsed in on themselves. Their gravitational field is so strong that nothing can escape, not even light.

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