How We Know What's Deep Inside the Earth, Despite Never Traveling
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The extreme conditions of inner Earth make it impossible to explore. But seismic waves during earthquakes, volcanic eruptions and light waves from the Sun all have helped reveal fascinating insights about our planet’s mantle, crust, and core.
The extreme conditions of inner Earth make it impossible to explore. But seismic waves during earthquakes, volcanic eruptions and light waves from the Sun all have helped reveal fascinating insights about our planet’s mantle, crust, and core.
![](https://wp.technologyreview.com/wp-content/uploads/2022/12/moon.jpeg)
NASA's return to the moon is off to a rocky start
![](https://cff2.earth.com/uploads/2023/09/02064048/earth-like-planet_rings_2medium.jpg)
There's so much more to discover before the world ends -- Horizon, horizon zero dawn complete edition
![](https://watv.org/wp-content/uploads/2020/12/center-of-the-earth.jpg)
Earth's Core: What Lies At The Centre And How Do We Know? BBC Science Focus Magazine
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Outer space - Wikipedia
![](https://scitechdaily.com/images/Martian-Interior-Illustration-scaled.jpg)
Study details differences between deep interiors of Mars and Earth, mars
![](https://cdn.mos.cms.futurecdn.net/zqzRnMwTmBWRLaEe6fUTDk.jpg)
Earth's Core: What Lies At The Centre And How Do We Know? BBC Science Focus Magazine
![](https://static.scientificamerican.com/sciam/cache/file/FEDCD2FF-B4D0-443D-BC3FAC9BC1898B49_source.jpg)
Why is the earth's core so hot? And how do scientists measure its temperature?
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Do we know as much about what lies beneath the Earth's crust as we do about outer space? - Quora
![](https://lojaarenagames.com.br/wp-content/uploads/2023/05/Horizon-Zero-Dawn-Complete-Edition-Playstation-Hits-Ps4-2-1306999365.jpg)
There's so much more to discover before the world ends -- Horizon, horizon zero dawn complete edition
![](https://images.newscientist.com/wp-content/uploads/2021/07/16143720/how-fast-does-earth-spin-187_1003703_earth_web.jpg)
How fast does Earth spin?
![](https://wtamu.edu/~cbaird/sq/images/earth_core.png)
What would happen if you fell into a hole that went through the center of the earth?
![](https://www.scoopearth.com/wp-content/uploads/2022/02/earth-1.jpg)
Earth's Core: What Lies At The Centre And How Do We Know? BBC Science Focus Magazine
![](https://d3i6fh83elv35t.cloudfront.net/static/2019/02/NASA-Apollo8-Dec24-Earthrise-1024x576.png)
If this space study is right, humans have never left Earth's atmosphere
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Seven Ways to Explore Space Without Leaving Earth, Travel
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In a new study, we've observed clues that distinguish the very deepest part of Earth's core