# What If You Drilled Straight Through the Earth?

- Page: https://pxreality.com/videos/what-if-you-drilled-straight-through
- Watch on YouTube: https://www.youtube.com/watch?v=I8x8r9De8Qs
- Published: 2026-10-07
- Channel: PXReality (https://www.youtube.com/@PXReality)

## Summary

What's the longest trip you could ever take? Not around the world. Straight DOWN. Dr. PX bolts a drill onto his rocket and digs from one side of the planet to the other. On the way: why nobody has ever done it (the Soviet Kola hole, Project Mohole, Germany's KTB), how deep our deepest hole really is, what's inside the Earth, what happens at the very center, and whether you'd flip upside down after passing it.

Honest note: nobody can do this today. The heat and pressure inside the Earth would destroy any machine we have. But the physics is real, and it's wild.

## Chapters

- 0:00 The longest trip (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=0s)
- 0:26 Honest moment: nobody can do this (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=26s)
- 0:39 1970: the Kola hole (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=39s)
- 1:15 The USA and Germany tried too (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=75s)
- 1:30 If the Earth were an apple (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=90s)
- 1:43 How deep is deep? (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=103s)
- 2:00 Two monsters: heat and pressure (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=120s)
- 2:19 Let's go! (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=139s)
- 2:28 The crust (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=148s)
- 2:44 The mantle (and diamonds) (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=164s)
- 3:04 The outer core and the magnetic field (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=184s)
- 3:25 Three million times the pressure (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=205s)
- 3:38 The inner core (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=218s)
- 4:01 The center of the Earth: floating! (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=241s)
- 4:18 Do you flip upside down? (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=258s)
- 4:43 Like a ball in a valley (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=283s)
- 5:07 38 minutes to anywhere (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=307s)
- 5:27 Daylight! (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=327s)
- 5:48 Your turn (https://www.youtube.com/watch?v=I8x8r9De8Qs&t=348s)

## Sources

- Kola Superdeep Borehole (1970–1992, 12,262 m, ~180 °C): Scientific American; Wikipedia "Kola Superdeep Borehole"
- "Through the apple's skin" comparison: Let's Talk Science; EarthDate
- Project Mohole (1961–1966): Earth Magazine; Wikipedia "Project Mohole"
- KTB borehole, Germany (9,101 m): GFZ Potsdam
- Challenger Deep (~10,935 m): NOAA. Earth's radius 6,371 km: USGS
- Earth's layers, flowing mantle, where diamonds form: USGS; Shirey et al. (2019)
- Outer core and the magnetic field: National Geographic; GFZ
- Inner core temperature and pressure: National Geographic; California Academy of Sciences
- Gravity tunnel (~38 minutes, any chord about the same): Klotz, American Journal of Physics 83 (2015)
- Antipodes (only ~4% of land is opposite land): Wikipedia "Antipodes"

## Credits

Animation: PXReality. Music: YouTube Audio Library. Sound effects: original. Narration: AI-generated voice.