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

  • unlocking its secrets. We now know that our galaxy contains

  • billions of other planetsbut how can we learn more about

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

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

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

  • habitability over time? Imagine we could study one of these

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

  • composition as Earth. By all accounts, this planet appears

  • very similar to our own. We discover evidence that this

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

  • setting that could have been favorable to life. But over

  • time, something drastic happened to this environment. This

  • planet's sun grew brighter and hotter - increasing the

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

  • then gradually, the volcanic gasses created a thick

  • atmosphere with clouds of sulfuric acid. That once

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

  • remnants of such a world may hold the key to understanding

  • planetary evolution and habitability. The twist is that

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

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

  • future of our planet and the billions of similar exoplanets

  • out therethis mysterious one needs more study. And it doesn't

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

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

  • we can unravel here, the more answers we can find out there.

[music]

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B1 INT US planet exoplanets similar environment study sulfuric

The Mysterious Planet

  • 142 5
    Amy.Lin   posted on 2019/11/05
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