If Earth collided with another planet

  • Context: Undergrad 
  • Thread starter Thread starter Gondur
  • Start date Start date
  • Tags Tags
    Earth Planet
Click For Summary
SUMMARY

The discussion centers on the hypothetical scenario of a rocky exoplanet colliding with Earth, which is three times its mass and diameter. A spacecraft, designed to withstand infinite pressure and temperature, burrows into Earth's core before the impact, during which Earth is vaporized and absorbed by the exoplanet. Post-impact, the spacecraft emerges on the surface of the exoplanet, where the surviving humans establish a new civilization. However, the feasibility of this scenario is heavily criticized due to the impossibility of an indestructible vessel and the survival of humans under extreme conditions.

PREREQUISITES
  • Understanding of planetary science and exoplanet characteristics
  • Knowledge of spacecraft engineering and materials science
  • Familiarity with the conditions of Earth's core and mantle
  • Concepts of human survival in extreme environments
NEXT STEPS
  • Research the properties of exoplanets and their potential for habitability
  • Study advanced materials used in spacecraft design for extreme conditions
  • Explore the effects of extreme pressure and temperature on biological organisms
  • Investigate the long-term survival strategies for humans in hostile environments
USEFUL FOR

This discussion is beneficial for planetary scientists, aerospace engineers, and anyone interested in the theoretical implications of planetary collisions and human survival in extreme conditions.

Gondur
Messages
25
Reaction score
0
A rocky Earth like exoplanet drifts into our solar system and will collide with Earth. It is 3 times the mass and diameter of Earth.

We build a spacecraft to drill into the core of the Earth prior to the impact. Assume our craft can withstand 'infinite' pressure and temperature and is therefore indestructible.

Our spacecraft burrows into the Earth's core and awaits the imminent impact.

When the impact does occur, the Earth's surface is vaporised and the Earth is then 'swallowed' by the Exoplanet.

During the impact, our spacecraft is transferred from the Earth's core into the mantle of the exoplanet.

At the end of the impact, Earth is destroyed and now forms part of the exoplanet.

The spacecraft now drills out from some distance inside the exoplanet to its surface.

The spacecraft now sits on top of the surface of the exoplanet.

The humans inside the spacecraft wait until the exoplanet is stable.

They get off the spacecraft and form a new civilisation on the exoplanet, which now orbits the Sun where the Earth used to do so.

Is a scenario like this possible?

Thanks.
 
Physics news on Phys.org
Gondur said:
A rocky Earth like exoplanet drifts into our solar system and will collide with Earth. It is 3 times the mass and diameter of Earth.

We build a spacecraft to drill into the core of the Earth prior to the impact. Assume our craft can withstand 'infinite' pressure and temperature and is therefore indestructible.

Our spacecraft burrows into the Earth's core and awaits the imminent impact.

When the impact does occur, the Earth's surface is vaporised and the Earth is then 'swallowed' by the Exoplanet.

During the impact, our spacecraft is transferred from the Earth's core into the mantle of the exoplanet.

At the end of the impact, Earth is destroyed and now forms part of the exoplanet.

The spacecraft now drills out from some distance inside the exoplanet to its surface.

The spacecraft now sits on top of the surface of the exoplanet.

The humans inside the spacecraft wait until the exoplanet is stable.

They get off the spacecraft and form a new civilisation on the exoplanet, which now orbits the Sun where the Earth used to do so.

Is a scenario like this possible?

Thanks.
There are a number of things about it that strain credibility. 1) An indestructible vessel which can withstand the heat and pressure of the Earth's core. 2) That humans could survive inside such a thing. The problem is that there is no way to keep the temperature the inside of the vessel from eventually reaching the temperature on the outside. 3) That humans could survive long enough inside such a vessel to wait until the new planet's surface cools down enough to be hospitable to life. We could be talking millions of years.
 
Gondur said:
Is a scenario like this possible?
No. The problem starts with the sentence that reads "Assume [something impossible]".

This thread is closed.
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
2K
Replies
6
Views
2K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 1 ·
Replies
1
Views
4K
  • · Replies 5 ·
Replies
5
Views
4K