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[music]

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Mysteries abound in our
universe, but bit by bit, we are

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unlocking its secrets. We now
know that our galaxy contains

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billions of other planets – but
how can we learn more about

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them? What traits do these
exoplanets have? What are they

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made of? What are their
environments like? How have they

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evolved over time? Are they
habitable? And can planets lose

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habitability over time? Imagine
we could study one of these

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planets up close. We find one of
similar size, mass, and

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composition as Earth. By all
accounts, this planet appears

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very similar to our own. We
discover evidence that this

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world may have once had liquid
water oceans and volcanoes – a

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setting that could have been
favorable to life. But over

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time, something drastic happened
to this environment. This

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planet’s sun grew brighter and
hotter - increasing the

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temperature here to the point
that the oceans boiled away. And

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then gradually, the volcanic
gasses created a thick

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atmosphere with clouds of
sulfuric acid. That once

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friendly environment was gone.
But all is not lost. The

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remnants of such a world may
hold the key to understanding

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planetary evolution and
habitability. The twist is that

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this isn’t science fiction, this
planet does exist. And if we

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want to learn more about the
past, present, and possible

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future of our planet and the
billions of similar exoplanets

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out there – this mysterious one
needs more study. And it doesn’t

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reside in some distant solar
system, truth be told, it sits

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right next door. This planet
is Venus. And the more mysteries