SPACE WEEK: The Mystery Of Dark Energy
b'It\'s Space Week on Short Wave! Today, an encore of our episode on dark energy. This mysterious energy makes up almost 70% of our universe and is believed to be the reason the universe is expanding. Yet very little is known about it. To figure out what we do know \\u2014 and what it could tell us about the fate of the universe \\u2014 we talk to astrophysicist Sarafina Nance.
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