The night sky is a time machine. The further we look out into the universe, the further back in time we reach. Most of what we see is actually dark matter and dark energy, but its nature eludes us... for the moment.
The night sky is a time machine. The further we look out into the universe, the further back in time we reach. Most of what we see is actually dark matter and dark energy, but its nature eludes us... for the moment.
Episode Discussion
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