If Earth collided with another planet

In summary, a rocky Earth-like exoplanet is set to collide with Earth and we build an indestructible spacecraft to drill into the Earth's core before the impact. During the collision, Earth is destroyed and becomes a part of the exoplanet. The spacecraft transfers from the Earth's core to the exoplanet's mantle and eventually emerges on the exoplanet's surface. The humans inside the spacecraft wait for the exoplanet to stabilize before forming a new civilization. However, this scenario is not possible due to the impossibility of an indestructible vessel surviving the extreme conditions of the Earth's core and the lengthy survival period required for humans to wait for the exoplanet to become habitable.
  • #1
Gondur
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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.
 
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  • #2
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.
 
  • #3
Gondur said:
Is a scenario like this possible?
No. The problem starts with the sentence that reads "Assume [something impossible]".

This thread is closed.
 

FAQ: If Earth collided with another planet

Question 1: What would happen if Earth collided with another planet?

If Earth were to collide with another planet, it would most likely result in the destruction of both planets. The impact would release an enormous amount of energy, causing widespread devastation and potentially altering the orbit and rotation of both planets.

Question 2: Is it possible for Earth to collide with another planet?

While it is not impossible for Earth to collide with another planet, it is highly unlikely. The vastness of space means that the chances of two planets colliding are incredibly low. Additionally, the gravitational forces of the other planets in our solar system act as a protective barrier for Earth.

Question 3: How would a planet collision impact life on Earth?

A planet collision would be catastrophic for life on Earth. The immediate effects of the impact would include massive earthquakes, tsunamis, and volcanic eruptions. The resulting changes in the Earth's atmosphere and climate would also have long-term consequences for all living organisms.

Question 4: Can we predict if Earth will ever collide with another planet?

It is difficult to predict if Earth will ever collide with another planet, as the movement of celestial bodies in space is complex and constantly changing. However, scientists are constantly monitoring the movements of nearby planets and asteroids to identify any potential threats to Earth.

Question 5: What would be the best course of action if Earth were on a collision course with another planet?

If Earth were on a collision course with another planet, there would likely be very little that could be done to prevent it. However, scientists and governments would work together to develop emergency plans and potentially evacuate areas that would be most impacted by the collision.

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